adjective. having no straps.
noun. a woman's garment that exposes the shoulders and has no shoulder straps.
1. Noun, singular or mass Choosing a strapless dress that fits well is key if you want it to flatter your figure. 2. Adjective Use one bra strap that loops around the back of your neck to create a halter-style bra, or remove the straps entirely for a strapless style.