strapless

[ strap-lis ]
/ ˈstræp lɪs /

adjective

without a strap or straps.
designed and made without shoulder straps: a strapless evening gown; a strapless bra.

Origin of strapless

First recorded in 1840–50; strap + -less

Example sentences from the Web for strapless

British Dictionary definitions for strapless

strapless
/ (ˈstræplɪs) /

adjective

(of a woman's formal dress, brassiere, etc) without straps over the shoulders