side·long
adjective/ˈsaɪdlɒŋ/
/ˈsaɪdlɔːŋ/
[only before noun]- (of a look) out of the corner of your eye, especially in a way that is secret or shows that you do not approve of somebody/something
侧眼偷看的；斜着眼看的；睨视的 - She cast a sidelong glance at Eric to see if he had noticed her blunder.
她偷偷斜扫了埃里克一眼，看他有没有留意到她的错误。
Oxford Collocations DictionarySidelong is used with these nouns:- glance
Word Originlate Middle English: alteration of earlier sideling, from side + the adverbial suffix -ling. - She cast a sidelong glance at Eric to see if he had noticed her blunder.