bounder

n (dated Brit infml derog 旧, 口, 贬) man whose behaviour is morally unacceptable 不道德的人.

bottom-line, bottomless, bottommost, botulism, boudoir, bouffant, bougainvillaea, bough, bought, bouillon, boulder, boulevard, bounce, bouncer (also bumper), bouncing, bouncy, bound, boundary, bounded, bounden, boundless, boundlessly, bounds, bounteous, bounteously, bounteousness, bountiful, bountifully, bounty, bouquet, bouquet garni, bourbon, bourgeois, bourgeoisie, bourse, bout, boutique, bovine, bow, bow-legged,