Vivacious quality is a term used to describe someone who is lively, energetic, and full of enthusiasm. The crossword solutions for this term are EFFERVESCENCE (13 letters), ESPRIT (6 letters), and SPUNK (5 letters). EFFERVESCENCE is a bubbly, lively quality, ESPRIT is a French term meaning wit and spirit, and SPUNK is a slang term for courage and determination. All three words capture the essence of vivacious quality, which is an energetic and spirited attitude.