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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples 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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012