hammerless,a.|ˈhæməlɪs| [f. hammer n.1 + -less.] Without a hammer: esp. of a gun. 1875‘Stonehenge’ Brit. Sports i. i. ii. §4. 44 The hammerless gun.1886Badm. Libr., Shooting (1895) 34 In matter of safety the hammerless has the advantage of the hammer gun.