underwear /ˈʌndəwɛə/ n. ［u］内衣：thermal(warm) underwear保暖（暖和）内衣；ladies’/women’s (men’s)underwear女士（男士）内衣 He had removed his underwear.他已脱去了内衣。He was getting cold standing around in his underwear.他穿着内衣站在那儿，感到越来越冷。