知らん顔
Common
Noun
Irregular
Intransitive
1
noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb
feigned ignorance;pretending not to know;pretending not to recognize (someone);ignoring
彼女は私に知らん顔をして歩いていってしまった。
She walked away without acknowledging me.
2
noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb
unconcerned air;indifference;nonchalance
彼女は知らん顔をした。
She assumed an air of indifference.