/ Dictionary / Index U ultima: Meaning and Definition of Find definitions for: ul•ti•ma Pronunciation: (ul'tu-mu), [key] — n. the last syllable of a word. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ultima (Thesaurus) ulterior ultimacy Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language