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Weighing less than is normal, healthy, or required.
Insufficiency of weight.
1. weighing less than is average, expected, or healthy
2. (Stock Exchange) finance
a. having a lower proportion of one's investments in a particular sector of the market than the size of that sector relative to the total market would suggest
b. (of a fund etc) disproportionately invested in this way: pension funds have become underweight of equities.
un•der•weight(adj. ˈʌn dərˈweɪt; n. ˈʌn dərˌweɪt)
1. weighing less than is usual or proper.n.
2. deficiency in weight below a standard or requirement.
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|Adj.||1.||underweight - being very thin; "a child with skinny freckled legs"; "a long scrawny neck"|
n. falta de peso, peso deficiente; bajo de peso; de peso insuficiente.