† ˈbossive,a.Obs.rare. [f. boss n.1 + -ive (suggested perhaps by F. bossu hump-backed).] Crooked, deformed. 1658Osborn Adv. Son (1673) 47 Wives do worse than miscarry, that go their full time of a Fool with a Bossive birth. ― Jas. IWks. 513 Here lies..Little Bossive Robin.