cavalier

cavalier |ˌkavəˈli(ə)r|noun1 ( Cavalier) historical a supporter of King Charles I in the English Civil War.• archaic or poetic/literary a courtly gentleman, esp. one acting as a lady's escort.• archaic a horseman, esp. a cavalryman.2 (also Cavalier King Charles) a small spaniel of a breed with a moderately long, noncurly, silky coat.adjectiveshowing a lack of proper concern; offhand : Anne was irritated by his cavalier attitude.DERIVATIVES