Main Entry: vi·va·cious

Pronunciation: \və-ˈvā-shəs also vī-\

Function: adjective

Etymology: Latin vivac-, vivax long-lived, vigorous, high-spirited, from vivere to live

Date: circa 1645

: lively in temper, conduct, or spirit : sprightly

synonyms see lively

— vi·va·cious·ly adverb

— vi·va·cious·ness noun