/ Dictionary / Index B buoyant: Meaning and Definition of Find definitions for: buoy•ant Pronunciation: (boi'unt, b'yunt), [key] — adj. tending to float in a fluid. capable of keeping a body afloat, as a liquid. not easily depressed; cheerful. cheering or invigorating. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: buoyant (Thesaurus) buoyancy compensator buoyant force Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language