imp·ish
adjective/ˈɪmpɪʃ/
/ˈɪmpɪʃ/
- showing a lack of respect for somebody/something in a way that is funny rather than serious
顽童似的；顽皮的；淘气的 - an impish grin/look
顽皮的笑脸／表情 - He takes an impish delight in shocking the press.
他以震惊媒体为乐。
Oxford Collocations DictionaryImpish is used with these nouns:- grin
- an impish grin/look