ˈcorsetless,a. [f. corset + -less.] Without corsets or a corset. 1896Westm.Gaz. 15 Apr. 8/1 The ladies of Tristan d'Acunha will for the present have to go corsetless.1923Glasgow Herald 21 Mar. 8 A..warfare against the corsetless and rationally corsetted figure.