underhand

Từ điển Oxford Advanced Learner 8th

under·hand f85 BrE [ˌʌndəˈhænd] NAmE [ˌʌndərˈhænd] (also less frequent under·hand·ed BrE [ˌʌndəˈhændɪd] ; NAmE [ˌʌndərˈhændɪd] ) adjective (disapproving)
secret and dishonest
•I would never have expected her to behave in such an underhand way.
•I promise you there's nothing underhand about this agreement.

Word Origin:
[underhand] Old English in the sense ‘in or into subjection, under control’ (see ↑under-, ↑hand).

• Từ đồng nghĩa / Synonyms:
  sneaky, underhanded, underarm, underhandedly
• Từ trái nghĩa / Antonyms:
  overhand, overhanded, overarm