/ Dictionary / Index O observable: Meaning and Definition of Find definitions for: ob•serv•a•ble Pronunciation: (ub-zûr'vu-bul), [key] — adj. capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude. worthy or important enough to be celebrated, followed, or observed: an observable holiday. deserving of attention; noteworthy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: observable (Thesaurus) obsequy observance Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language