Niyaniya
Also read: にやにや
ニヤニヤ (Niyaniya) is a Japanese adverb meaning “grinning, smirking”.
Meanings
- adverb, adverb (to), suru verbgrinning; smirking
Examples
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?
Sentences from Tatoeba (CC BY 2.0 FR).