/ Dictionary / Index A atonic: Meaning and Definition of Find definitions for: a•ton•ic Pronunciation: (u-ton'ik, ā-ton'-), [key] — adj. unaccented. Obs.voiceless. characterized by atony. —n. an unaccented word, syllable, or sound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: atonic (Thesaurus) atonement atonicity Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language