/ Dictionary / Index I inaction: Meaning and Definition of Find definitions for: in•ac•tion Pronunciation: (in-ak'shun), [key] — n. absence of action; idleness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inaction (Thesaurus) inaccurate inactivate Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language