Topless, or topless, means that women don't wear anything above the waist. This word is sometimes used to describe a woman's bare breasts, where areola and nipple can be seen, often in public space. In some art paintings, such as "Guiding People's Freedom" and "Portrait of Simoneta Weiss Pucci", it can be seen that the upper body of the figure still has clothes, but the breasts are not covered.

When used as an adjective topless, it can refer to the following situations: when a woman appears in public, she poses or performs with her bare chest; Participate in activities or performances with bare breasts (sunbathing half naked, dancing topless); Female bare breasts participate in art, photography or film performances (topless photography); Or in a place where topless women are tolerated (topless bar); Or in clothing design, bare breasts and nipples (topless swimsuits).