/ Dictionary / Index U unidimensional: Meaning and Definition of Find definitions for: u•ni•di•men•sion•al Pronunciation: (y"ni-di-men'shu-nl, -dī-), [key] — adj. one-dimensional. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unidimensional (Thesaurus) unidentified flying object unidirectional Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language