abomination, abstruse, aggregate, amorous, androgynous, cipher, coagulate, cocktail, code, complicated, conglomerate, contort, contraption, conundrum, convolute, deontology, dialect, dialectic, duct, eclectic, edifice, emblem, figurative, filtrate, fiscal, fissure, framework, geology, geophysics, grotesque, gyrate, heterogeneous, hieroglyphics, hybrid, hypothetical, inconceivable, insoluble, jejune, kerfuffle, labyrinth, labyrinthine, logistical, manifold, metaphor, nebulous, nuance, oxymoron, palaver, patchwork, petrify, polygamy, ramble, ramification, rigmarole, rudimental, serpentine, shorthand, simile, singularity, sluice, sociology, symbolization, syncopate, synecdoche, tentacle, ultimate, underlying, underpinning, undulate, uneven, unfathomable, unidentified, vortex, zeugma