Dictionary / Vocabulary / 悪びれる
わるびれる
to act timid; to show diffidence; to be hesitant; to appear embarrassed
Also written 悪怯れる
そんな事実にまったく悪びれることなく、千歳は今日も元気に過ごしております。
Without flinching from that fact in the slightest, Chitose is spending today as well in fine spirit.