/ Dictionary / Index U unballasted: Meaning and Definition of Find definitions for: un•bal•last•ed Pronunciation: (un-bal'u-stid), [key] — adj. not fitted with or carrying ballast. not properly steadied or regulated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unbalanced unbar Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language