English Synonyms for Prefix ir- Vocabulary Words – Online Quiz!

irascible (adjective) /ɪˈrasɪb(ə)l/
Meaning: It implies someone who is prone to displaying anger, or getting easily irritated or annoyed, often over small or insignificant things.
Find the synonym: Which option is closest in meaning to irascible?
Options: touchy; easy-going; patient; unflappable
Answer: touchy
Synonyms: captious; crabby; fractious; irritable; narky; prickly; testy; tetchy; touchy; waspish
Example: "Despite his impressive accomplishments, he had an irascible temperament that made collaboration difficult."

irate (adjective) /ʌɪˈreɪt/
Meaning: It can also be used to describe a person's tone of voice or behavior that shows anger or frustration.
Find the synonym: Which option is closest in meaning to irate?
Options: furious; calm; peaceful; serene
Answer: furious
Synonyms: agitated; angry; enraged; exasperated; fuming; furious; incandescent; incensed; indignant; infuriated; livid; mad
Example: "The irate customer stormed out of the shop after a heated argument with the salesperson."

iridescent (adjective) /ˌɪrəˈdɛsənt/
Meaning: These colors are often seen in the wings of birds, the shells of some mollusks, and the scales of some fish, which create a shimmering effect when they reflect light.
Find the synonym: Which option is closest in meaning to iridescent?
Options: multicolored; monochrome; colorless; dull
Answer: multicolored
Synonyms: colorful; multicolored; nacreous; opalescent; opaline; pearlescent; pearly; shimmering
Example: "The butterfly's wings shimmered with an iridescent glow in the sunlight."

irk (verb) /ɜrk/
Meaning: When something irks a person, it generates a sense of displeasure or frustration.
Find the synonym: Which option is closest in meaning to irk?
Options: annoy; please; delight; satisfy
Answer: annoy
Synonyms: agitate; annoy; bother; exasperate; gall; grate; irritate; nettle; peeve; provoke; rile; vex
Example: "Loud chewing noises irk me during meals."

irksome (adjective) /ˈəːks(ə)m/
Meaning: It implies something that is likely to cause irritation, annoyance or weariness, it suggests that something is persistently troublesome or vexatious.
Find the synonym: Which option is closest in meaning to irksome?
Options: annoying; pleasant; enjoyable; delightful
Answer: annoying
Synonyms: aggravating; annoying; bothersome; disagreeable; exasperating; galling; grating; infuriating; irritating; maddening; nettlesome; tiresome
Example: "The irksome traffic made me late for my meeting."

ironic (adjective) /aɪˈrɒn ɪk/
Meaning: Irony often involves a sense of incongruity or contradiction, where the outcome is unexpected, and it can carry a tone of sarcasm or humor.
Find the synonym: Which option is closest in meaning to ironic?
Options: paradoxical; straightforward; expected; literal
Answer: paradoxical
Synonyms: humorous; incongruous; paradoxical; peculiar; quaint; surprising; unexpected; whimsical
Example: "It was ironic that the fire station burned down due to a faulty electrical system."

irony (noun) /ˈaɪ rə ni/
Meaning: Irony can manifest in various forms, such as situational irony, where the outcome is contrary to what is anticipated, or verbal irony, where the intended meaning contradicts the literal interpretation of words.
Find the synonym: Which option is closest in meaning to irony?
Options: contradiction; straightforwardness; sincerity; frankness
Answer: contradiction
Synonyms: absurdity; contradiction; cynicism; incongruity; mockery; paradox; sarcasm; sardonicism; satire; twist; wryness
Example: "The irony of the situation was palpable as the self-proclaimed expert struggled to solve a basic math problem."

irrational (adjective) /ɪræʃənəl/
Meaning: When something is described as irrational, it implies that it goes against the norms of rationality and cannot be justified or explained through logical thinking.
Find the synonym: Which option is closest in meaning to irrational?
Options: illogical; rational; logical; reasonable
Answer: illogical
Synonyms: absurd; crazy; delusional; erratic; foolish; illogical; impractical; nonsensical; senseless; unreasonable; unwise
Example: "Despite being warned about the risks, she made an irrational decision and invested all her savings in a get-rich-quick scheme."

irreconcilable (adjective) /ɪˈrɛkənsaɪləbᵊl/
Meaning: It is often used to describe conflicting ideas, beliefs, or values that are fundamentally opposed and cannot be reconciled.
Find the synonym: Which option is closest in meaning to irreconcilable?
Options: incompatible; harmonious; compatible; reconcilable
Answer: incompatible
Synonyms: antagonistic; clashing; conflicting; contradictory; divisive; implacable; incompatible; insurmountable; intractable; irreparable; irretrievable; opposing
Example: "Their irreconcilable differences eventually led to a divorce."

irrecoverable (adjective) /ˌɪr ɪˈkʌv ər ə bəl/
Meaning: It indicates a state of permanence or finality, implying that the loss or damage incurred is irreversible and cannot be undone.
Find the synonym: Which option is closest in meaning to irrecoverable?
Options: unrecoverable; retrievable; reclaimable; recoverable
Answer: unrecoverable
Synonyms: gone; irredeemable; irreparable; irretrievable; irreversible; irrevocable; lost; unattainable; unrecoverable; unredeemable; unregainable; unrepairable
Example: "The painting was stolen, making it an irrecoverable loss for the art community."

irreducible (adjective) /ˌɪrɪˈdjuːsɪbl/
Meaning: This word is commonly used to describe a situation, problem, or concept that cannot be easily resolved or broken down into smaller parts.
Find the synonym: Which option is closest in meaning to irreducible?
Options: fundamental; reducible; simplifiable; diminishable
Answer: fundamental
Synonyms: essential; immutable; inalienable; inalterable; indivisible; inexorable; inherent; intrinsic
Example: "The political situation was characterized by an irreducible complexity of cultural, social, and economic factors."

irrefutable (adjective) /ˌɪrɪˈfjuːtəbl/
Meaning: When a claim, fact, or evidence is deemed irrefutable, it means that it is so clear, compelling, and convincing that no reasonable person could contest or challenge it successfully.
Find the synonym: Which option is closest in meaning to irrefutable?
Options: undeniable; disputable; questionable; debatable
Answer: undeniable
Synonyms: absolute; certain; clear; evident; incontestable; incontrovertible; indisputable; obvious; undeniable; unequivocal; unmistakable; unquestionable
Example: "The DNA evidence presented in court was irrefutable and proved the defendant's guilt."

irregular (adjective) /ɪregjʊləʳ/
Meaning: It describes a lack of regularity, consistency, or conformity.
Find the synonym: Which option is closest in meaning to irregular?
Options: abnormal; regular; normal; standard
Answer: abnormal
Synonyms: abnormal; asymmetrical; atypical; erratic; haphazard; nonconforming; nonuniform; sporadic; unconventional; uneven; unpredictable; unsteady
Example: "The map showed a winding river with an irregular course cutting through the landscape."

irregularity (noun) /ɪˌrɛg yəˈlær ɪ ti/
Meaning: It signifies a departure from the norm or standard, indicating something that is atypical, abnormal, or inconsistent.
Find the synonym: Which option is closest in meaning to irregularity?
Options: anomaly; conformity; regularity; norm
Answer: anomaly
Synonyms: aberration; anomaly; defect; deviation; discrepancy; flaw; hiccup; idiosyncrasy; inconsistency; oddity; quirk; variation
Example: "The doctor noticed an irregularity in the patient's heartbeat during the examination."

irrelevant (adjective) /ɪˈrɛl ə vənt/
Meaning: When something is deemed irrelevant, it lacks significance, relevance, or importance in relation to a specific topic, context, or discussion.
Find the synonym: Which option is closest in meaning to irrelevant?
Options: unrelated; pertinent; relevant; applicable
Answer: unrelated
Synonyms: extraneous; immaterial; inapplicable; inconsequential; insignificant; negligible; pointless; unconnected; unimportant; unrelated
Example: "The information he provided was completely irrelevant to the topic of discussion."

irreparable (adjective) /ɪˈrɛp ər ə bəl/
Meaning: When an object, situation, or damage is deemed irreparable, it means that the harm, loss, or deterioration is permanent and cannot be reversed or fixed.
Find the synonym: Which option is closest in meaning to irreparable?
Options: unfixable; fixable; repairable; mendable
Answer: unfixable
Synonyms: incurable; irrecoverable; irredeemable; irremediable; irretrievable; irreversible; permanent; uncorrectable; unfixable; unremediable; unrepairable
Example: "Her thoughtless comment resulted in irreparable harm to their friendship."

irreproachable (adjective) /ɪrɪˈprəʊtʃəb(ə)l/
Meaning: When a person or thing is described as irreproachable, it means that there is nothing wrong or negative about them, and that they meet all standards of excellence and acceptability.
Find the synonym: Which option is closest in meaning to irreproachable?
Options: flawless; blameworthy; culpable; reproachable
Answer: flawless
Synonyms: exceptional; exemplary; faultless; flawless; honorable; immaculate; impeccable; perfect; pure; sinless; spotless; unblemished
Example: "Her work ethic and professionalism are truly irreproachable."

irresistible (adjective) /ˌɪrɪˈzɪstɪbl/
Meaning: When applied to a person, object, or situation, it signifies an overwhelming attraction or charm that exerts a powerful and almost uncontrollable influence.
Find the synonym: Which option is closest in meaning to irresistible?
Options: captivating; resistible; unappealing; repulsive
Answer: captivating
Synonyms: alluring; compelling; compulsive; enticing; inescapable; inviting; overpowering; tempting
Example: "The aroma of freshly baked cookies was irresistible, drawing everyone to the kitchen."

irresolute (adjective) /ɪˈrɛz əˌlut/
Meaning: An irresolute person lacks the ability to make up their mind and often hesitates when it comes to making important decisions.
Find the synonym: Which option is closest in meaning to irresolute?
Options: indecisive; determined; resolute; decisive
Answer: indecisive
Synonyms: ambivalent; dithering; doubtful; faltering; hesitant; indecisive; tentative; uncertain; unresolved; vacillating; wavering
Example: "His irresolute nature often leads to missed opportunities."

irresponsible (adjective) /ˌɪr ɪˈspɒn sə bəl/
Meaning: It suggests a disregard for obligations, commitments, or social norms, often resulting in negative outcomes or harm to oneself or others.
Find the synonym: Which option is closest in meaning to irresponsible?
Options: careless; responsible; accountable; reliable
Answer: careless
Synonyms: careless; heedless; immature; imprudent; inconsiderate; negligent; reckless; thoughtless; unaccountable; undependable; unreliable; untrustworthy
Example: "Leaving the campfire unattended was an irresponsible act that could have led to a forest fire."

irreverent (adjective) /ɪˈrɛvərənt/
Meaning: An irreverent person may make light of serious or sacred topics, make jokes that others find offensive, or question authority or tradition.
Find the synonym: Which option is closest in meaning to irreverent?
Options: disrespectful; respectful; reverent; deferential
Answer: disrespectful
Synonyms: audacious; blasphemous; cheeky; contemptuous; disrespectful; flippant; iconoclastic; impertinent; impious; impudent; insolent; insubordinate
Example: "His irreverent humor always lightened the mood at our meetings."

irrevocable (adjective) /ɪˈrɛvəkəbəl/
Meaning: This word is often used to describe decisions or actions that have significant consequences and cannot be easily reversed.
Find the synonym: Which option is closest in meaning to irrevocable?
Options: unchangeable; reversible; changeable; alterable
Answer: unchangeable
Synonyms: changeless; enduring; final; fixed; immutable; irremediable; irretrievable; irreversible; lasting; permanent; unalterable; unchangeable
Example: "The decision to quit my job was irrevocable, and I felt a sense of relief afterward."

irrigation (noun) /ˌɪrɪˈɡeiʃən/
Meaning: It involves the controlled and deliberate application of water to crops, gardens, or other vegetation to supplement natural rainfall and ensure proper hydration.
Find the synonym: Which option is closest in meaning to irrigation?
Options: watering; dehydration; dryness; aridity
Answer: watering
Synonyms: dampening; dousing; drenching; dripping; flooding; hydration; moistening; pouring; saturation; sousing; sprinkling; watering
Example: "The farmers implemented an efficient irrigation system to ensure their crops received sufficient water."

irritate (verb) /ˈɪr ɪˌteɪt/
Meaning: When one irritates, they trigger a state of displeasure or agitation, typically by their actions, words, or behavior.
Find the synonym: Which option is closest in meaning to irritate?
Options: vex; soothe; calm; appease
Answer: vex
Synonyms: agitate; annoy; bother; exasperate; gall; irk; nettle; peeve; pester; provoke; rile; vex
Example: "The persistent sound of the leaky faucet would irritate anyone trying to sleep."

irritating (adjective) /ˈɪr ɪˌteɪ tɪŋ/
Meaning: It refers to a quality or behavior that tends to provoke or bother others, often resulting in a sense of discomfort or unease.
Find the synonym: Which option is closest in meaning to irritating?
Options: annoying; pleasing; comforting; enjoyable
Answer: annoying
Synonyms: agitating; annoying; bothersome; exasperating; frustrating; grating; irksome; maddening; nettlesome; pestering; provoking; vexing
Example: "The constant buzzing of the mosquito was highly irritating, preventing me from getting a good night's sleep."

irritation (noun) /ˌɪrɪˈteɪʃᵊn/
Meaning: It involves a feeling of being bothered or agitated by an external stimulus, circumstance, or interaction.
Find the synonym: Which option is closest in meaning to irritation?
Options: annoyance; pleasure; comfort; satisfaction
Answer: annoyance
Synonyms: agitation; annoyance; bother; displeasure; exasperation; frustration; hassle; inconvenience; nuisance; pique; provocation; vexation
Example: "The constant buzzing of mosquitoes caused irritation to the campers."