Hot, sexy, astoundingly cool, etc.
Bradley and Jared looked unusually vivacious at the club.
by pilassgrimaker February 28, 2005
Sexy, Hot, Astoundingly cool
Bradley and Jared were looking extremely vivacious at the school dance.
by Jared Hoffman February 23, 2005
a really stupid word for a really stupid faggot who thinks that people actually like them, when in all reality everyone thinks they're an ugly piece of trash.
1. That Vance kid is so VIVACIOUS!
by poopdick. July 10, 2008