/ Dictionary / Index U unilinear: Meaning and Definition of Find definitions for: u•ni•lin•e•ar Pronunciation: (y"nu-lin'ē-ur), [key] — adj. developing or evolving in a steady, consistent, and undeviating way. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unilineal unilingual Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language