vivacious /vəˈveɪʃəs/ adjective Learner's definition of VIVACIOUS
[more vivacious; most vivacious]
: happy and lively in a way that is attractive —
used especially of a woman活泼的,快乐的,动人的(尤指女子)
— vivaciousness
noun [noncount] — vivacity
/vəˈvæsəti/ noun [noncount]