/ Dictionary / Index O one-dimensional: Meaning and Definition of Find definitions for: one-di•men•sion•al Pronunciation: (wun'di-men'shu-nl), [key] — adj. having one dimension only. having no depth or scope: a novel with one-dimensional characters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: one-dimensional (Thesaurus) one-base hit one-eighty Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language