/ Dictionary / Index A antimanic: Meaning and Definition of Find definitions for: an•ti•man•ic Pronunciation: (an"tē-man'ik, -mā'nik, an"tī-), [key] — adj. preventing, curing, or palliating the symptoms of mania. —n. a pharmacological substance used to treat mania, as lithium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antimagnetic Anti-Mason 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