/ Dictionary / Index I illogic: Meaning and Definition of Find definitions for: il•log•ic Pronunciation: (i-loj'ik), [key] — n. the state or quality of being illogical; illogicality: His speech was full of illogic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: illogic (Thesaurus) illocutionary illogical Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language