of women, "bare-breasted," 1966, from top (n.1) + -less. Earlier it was used of men's bathing suits (1937) and women's (1964). Earliest sense is "without a visible summit; immeasurably high" (1580s).
例文
1. I wouldn 't sunbathe topless if I thought I might offend anyone.
誰かを怒らせると思ったら、私は体を露出して日光浴をしません。
2.There were rumours that she had posed topless for a magazine.
彼女はある雑誌のために半身ヌード写真を撮ったと噂されている。
3.If you are topless in a public place,this sort of thing is bound to happen.