/ Dictionary / Index A acedia: Meaning and Definition of Find definitions for: a•ce•di•a Pronunciation: (u-sē'dē-u), [key] — n. sloth (def. 1). Cf. deadly sins. laziness or indifference in religious matters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acedia (Thesaurus) acebutolol ace-high Related Content Daily Word Quiz: leonine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language