vi ‧ va ‧ cious /vəˈveɪʃəs, vɪˈveɪʃəs $ və-, vaɪ-/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Latin ; Origin: vivax 'living a long time, vivacious' , from vivere ; ⇨ ↑ vivid ]
someone, especially a woman, who is vivacious has a lot of energy and a happy attractive manner – used to show approval SYN lively :
a vivacious personality
—vivaciously adverb
—vivaciousness noun [uncountable]
—vivacity /vəˈvæsəti, vɪˈvæsəti $ və-, vaɪ-/ noun [uncountable]