/ Dictionary / Index U undissociated: Meaning and Definition of Find definitions for: un•dis•so•ci•at•ed Pronunciation: (un"di-sō'shē-ā"tid, -sē-ā"-), [key] — adj. Chem. not dissociated, esp. into ions or into simpler molecules. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. undisposed undistinguished Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language