vibrant /ˈvaɪbɹənt/adjective 4noun 1forms 3 adjective4 •Pulsing with energy or activity.He has a vibrant personality. •Lively and vigorous. •Bright. •Vibrating, resonant or resounding.Mock their pale vigils, void and vain, / Whether, more curious than humane, / Like Augurs old, they pore / On the still-vibrant fibre's frame — 1770 noun1 •Any of a class of consonants including taps and trills. formsvibrants · more vibrant · most vibrant