ニヤニヤ
ニヤニヤ
grinning; smirking
N4Common wordAdverb
Adverb, Adverb (to particle), Suru verb
grinning•smirking
Example Sentences
さっきからあの人一人でにやにやして。怪しい。
That person has had an odd grin on his face for a while. What do you suppose is behind it?
なにニヤニヤしてるんだよ。何かいいことあったのか。
What are you smirking at? Did something good happen?