English Antonyms for Additional and Supplementary Vocabulary Words – Online Quiz!

accessory (noun) /ækˈsɛs ə ri/
Definition: An item or object that complements or enhances another object, typically used in conjunction with it for practical, decorative, or fashion purposes.
Antonyms quiz: Choose the opposite meaning of accessory.
Options: accompaniment; adjunct; adornment; necessity
Answer: necessity
Example sentence: "The car's interior was equipped with various tech accessories, such as a Bluetooth speaker and a navigation system."

accouterment (noun) /əˈku tər mənt/
Definition: The collection or set of accessories or equipment associated with a particular activity, role, or style.
Antonyms quiz: Choose the opposite meaning of accouterment.
Options: accessories; appurtenances; attire; lack
Answer: lack
Example sentence: "As a photographer, Emily had a unique accouterment featuring vintage lenses."

additional (adjective) /əˈdɪʃ ə nl/
Definition: Added or supplementary to what already exists or is present.
Antonyms quiz: Choose the opposite meaning of additional.
Options: added; ancillary; bonus; subtractive
Answer: subtractive
Example sentence: "The team made several additional improvements."

adjunct (adjective) /ˈadʒʌŋ(k)t/
Definition: Added or attached to another thing to supplement it or make it more complete.
Antonyms quiz: Choose the opposite meaning of adjunct.
Options: accessory; accompaniment; addendum; primary
Answer: primary
Example sentence: "The grammar book includes an adjunct section on sentence structure."

adjust (verb) /əˈdʒʌst/
Definition: To make alterations or changes to something in order to achieve a desired outcome or to bring it into proper alignment or balance.
Antonyms quiz: Choose the opposite meaning of adjust.
Options: adapt; alter; amend; maintain
Answer: maintain
Example sentence: "Please adjust the temperature; it's quite hot in here."

alternative (noun) /ɔlˈtɜr nə tɪv/
Definition: A choice or option that is presented as an alternative to the usual or conventional one.
Antonyms quiz: Choose the opposite meaning of alternative.
Options: choice; opportunity; option; same
Answer: same
Example sentence: "Veganism is a popular alternative to a meat-based diet."

ancillary (adjective) /anˈsɪləri/
Definition: Auxiliary, supplementary, or additional, often in a supportive or secondary role.
Antonyms quiz: Choose the opposite meaning of ancillary.
Options: accessory; added; auxiliary; primary
Answer: primary
Example sentence: "The hotel offered ancillary amenities like a spa, gym, and complimentary breakfast."

appendage (noun) /əˈpɛndɪdʒ/
Definition: A part that is attached or added to something larger, typically a limb or an extension of the body.
Antonyms quiz: Choose the opposite meaning of appendage.
Options: accessory; addition; adjunct; core
Answer: core
Example sentence: "Insects often have segmented appendages for locomotion."

auxiliary (adjective) /ɔːɡˈzɪlɪəri/
Definition: Providing additional or supplementary support or assistance.
Antonyms quiz: Choose the opposite meaning of auxiliary.
Options: additional; ancillary; assisting; main
Answer: main
Example sentence: "The auxiliary police force was called in to assist with crowd control at the event."

cover (verb) /ˈkʌv ər/
Definition: To place something over or on top of another object, surface, or area to conceal, protect, or include it.
Antonyms quiz: Choose the opposite meaning of cover.
Options: compensate; conceal; document; expose
Answer: expose
Example sentence: "Please cover the pot with a lid while cooking."

etcetera (noun) /ɪt ˈsɛtrə/
Definition: Additional unspecified items or details that could be included in a list or sequence.
Antonyms quiz: Choose the opposite meaning of etcetera.
Options: additional; ancillary; extras; none
Answer: none
Example sentence: "The catalog features a wide range of clothing, accessories, home decor, etcetera."

modulate (verb) /ˈmɒdʒ əˌleɪt/
Definition: To adjust or regulate something, usually a sound or a signal, so that it meets a particular standard or achieves a desired effect.
Antonyms quiz: Choose the opposite meaning of modulate.
Options: adapt; alter; change; disrupt
Answer: disrupt
Example sentence: "He needed to modulate his voice to convey sincerity during the speech."

prefix (noun) /ˈpriːfɪks/
Definition: A string of letters or sounds added to the beginning of a word to change its meaning or form a new word.
Antonyms quiz: Choose the opposite meaning of prefix.
Options: adjunct; affix; beginning; suffix
Answer: suffix
Example sentence: "The prefix "re" often denotes repetition, like "rewrite" or "redo."

provision (noun) /prəˈvɪʒ ən/
Definition: A specific item, resource, or measure that is supplied or made available to fulfill a particular need or requirement.
Antonyms quiz: Choose the opposite meaning of provision.
Options: accommodation; allowance; arrangement; lack
Answer: lack
Example sentence: "The contract includes a provision for early termination."

residual (adjective) /rɪˈzɪdʒʊəl/
Definition: Something that remains or is left over after a process or event has taken place.
Antonyms quiz: Choose the opposite meaning of residual.
Options: continuing; enduring; extra; primary
Answer: primary
Example sentence: "Despite thorough cleaning, there was still a residual stain on the carpet."

secondary (adjective) /ˈsɛk ənˌdɛr i/
Definition: Of lesser importance, rank, or significance compared to something else.
Antonyms quiz: Choose the opposite meaning of secondary.
Options: ancillary; auxiliary; derived; primary
Answer: primary
Example sentence: "After completing primary school, students move on to secondary education."

subjoin (verb) /səbˈdʒɔɪn/
Definition: To add or append something supplementary to a main or existing document, text, or statement.
Antonyms quiz: Choose the opposite meaning of subjoin.
Options: add; affix; annex; separate
Answer: separate
Example sentence: "He will subjoin a brief explanation to the email."

subsidiary (adjective) /səbˈsɪdɪəri/
Definition: Subordinate or secondary in importance or nature to something else.
Antonyms quiz: Choose the opposite meaning of subsidiary.
Options: accessory; accompaniment; additional; primary
Answer: primary
Example sentence: "The profits of the subsidiary entity are essential to our overall financial health."

substitute (noun) /ˈsʌb stɪˌtut/
Definition: A person or thing that takes the place or acts as a replacement for someone or something else.
Antonyms quiz: Choose the opposite meaning of substitute.
Options: alternate; backup; cover; original
Answer: original
Example sentence: "The substitute goalkeeper made a brilliant save, securing the team's victory."

suffix (noun) /ˈsʌfɪks/
Definition: A string of letters or sounds added to the end of a word to change its meaning or form a new word.
Antonyms quiz: Choose the opposite meaning of suffix.
Options: addendum; addition; affix; prefix
Answer: prefix
Example sentence: "The suffix "-ment" is commonly used to form nouns from verbs."

supplement (verb) /ˈsʌp ləˌmɛnt/
Definition: To add something extra, complement, enhance, or complete an existing thing, system, or entity.
Antonyms quiz: Choose the opposite meaning of supplement.
Options: add; amplify; augment; reduce
Answer: reduce
Example sentence: "The company will supplement the report with additional data for a comprehensive analysis."

supplemental (adjective) /ˌsʌp ləˈmɛn tl/
Definition: Additional, extra, or provided as a supplement or addition to something else.
Antonyms quiz: Choose the opposite meaning of supplemental.
Options: accessory; additional; additive; primary
Answer: primary
Example sentence: "The student used supplemental study guides to prepare for the exam."

supplementary (adjective) /ˌsʌp ləˈmɛn tə ri/
Definition: Serving as an addition, complement, or extension to something else.
Antonyms quiz: Choose the opposite meaning of supplementary.
Options: accessory; added; additional; essential
Answer: essential
Example sentence: "The student used supplementary online resources to study for the exam."