きおくれ

気後れ
nervous
timid

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きおくれ【気後れ】

diffidence; loss of confidence; awkwardness; feeling out of place [awkward].

●気後れがする become [feel] diffident; lose heart [one's nerve]; shrink 《from…》; be daunted 《at [by]…》; feel out of place [awkward]; feel self-conscious [nervous]

・あの人の前に出ると気後れがする. I feel awkward in his presence. | I lose my nerve in front of him.

・周囲は若い人ばかりで気後れがして僕は輪の中に入れなかった. With young people all around me I felt out of place and couldn't join them [their circle].