Shirabe
閉口
Common Irregular Intransitive Noun I-adj
English jmdict
1
noun or participle which takes the aux. verb suruintransitive verbnoun (common) (futsuumeishi)adjectival nouns or quasi-adjectives (keiyodoshi) to be stumped;to be at a loss;to be at one's wits' end;to be nonplussed
He was stumped by the problem.
2
noun or participle which takes the aux. verb suruintransitive verbnoun (common) (futsuumeishi)adjectival nouns or quasi-adjectives (keiyodoshi) to be fed up;to be tired (of);to be unable to bear;to be annoyed
I'm annoyed at your selfishness.