mid-14c., "by secret means, stealthily, in a surreptitious manner," from under + hand (n.). Perhaps the notion is of the hand turned over (thus concealing what it holds). Compare Middle Dutch onderhanden "by degrees, slowly," Dutch onderhandsch "secret, private." The adjective is attested from 1540s. Old English under hand meant "in subjection, in (one's) control or power."
实用例句
1. It is a sneaky and underhand way of doing business.
这种做生意的方式偷偷摸摸，遮遮掩掩。
来自柯林斯例句
2. In softball, pitches are tossed underhand.
垒球运动中采用低手投球。
来自柯林斯例句
3. Mr Livingstone accused the government of being underhand.
利文斯通先生指责政府搞欺诈。
来自柯林斯例句
4. I would never have expected her to behave in such an underhand way.
我从未想到她的行为竟如此阴险。
来自《权威词典》
5. Underhand work of that sort is against the grain with me.
