Strapless

Adjective

 * 1) Without a strap or straps.

Thesaurus
clothesless, decollete, disrobed, en deshabille, garbless, garmentless, half-clothed, in dishabille, low-cut, nudish, raimentless, topless, unattired, uncased, unclad, unclothed, undraped, undressed, ungarbed, ungarmented, unrobed