(形容词)体重过轻;低于同年龄、身高或健康标准的正常体重范围。(也可作名词,指“体重过轻的人/状态”,但较少见。)
/ˌʌndərˈweɪt/
She has been underweight since she got sick.
她生病后一直体重过轻。
People who are underweight may feel tired easily and should seek medical advice if the problem continues.
体重过轻的人可能更容易感到疲劳,如果情况持续,应寻求医疗建议。
由前缀 **under-**(“不足、低于”)+ weight(“体重/重量”)构成,字面意思就是“低于(正常)体重”。这一构词方式在英语里很常见,用来表达“未达到某标准”的状态。