Synonyms for Topless:

n.

stripped, au naturel, bare to the waist, undressed, bare, exposed, a state of undress, full-frontal. topless (noun)
lidless, unclothed, bare-breasted, braless.

Other synonyms:

full-frontal, stripped. undressed, au naturel. bare. Other relevant words:
stripped, undressed, bare, exposed, full-frontal.