音标：['ʌndәweit]
n. 重量不足
a. 重量不足的
在线英汉词典

underweight的短语、例句：

underweight adj below the usual, legal or stated weight 低於一般重量的; 未达标准或规定之重量的; 重量不足的
You are only slightly underweight for (ie in relation to) your height. 按你的身高来说, 你体重仅稍轻一点儿.
The coal is six pounds underweight/underweight by six pounds. 这些煤的重量少了六磅. =>Usage at thin 用法见thin. Cf 参看 overweight.