Backless as an adjective is having no back, said of things that you usually expect to have backs, such as chairs or dresses while Low-cut as an adjective is cut low, especially (of clothing) so as to reveal part of the breasts.
Part of speech: adjective
Definition: having no back, said of things that you usually expect to have backs, such as chairs or dresses
Part of speech: adjective
Definition: Cut low, especially (of clothing) so as to reveal part of the breasts.
We hope you now know whether to use Backless or Low-cut in your sentence.