suave /swɑːv/ BrE AmE adjective
[ Date: 1500-1600 ; Language: French ; Origin: 'pleasant, sweet' , from Latin suavis ]
someone who is suave is polite, confident, and relaxed, sometimes in an insincere way SYN smooth :
a suave and sophisticated gentleman
—suavely adverb
—suavity, suaveness noun [uncountable]