Illustration: At a family dining table, an older sibling watches a younger sibling lift the lid from a rice bowl. Beneath it sits a tiny toy frog, balanced neatly on top of the rice. The older sibling keeps their lips closed in a broad, uneven grin, cheeks lifted and eyes narrowed sideways toward the discovery.

JLPT N1adverbLevel estimated by Bebop

ニヤニヤ

niyaniya

with a grin, smirking

Example sentences

  1. トム、ニヤニヤしてる。

    Tom is grinning.

    Tatoeba · CC BY 2.0 FR · Source

  2. なにニヤニヤしてるんだよ。何なにかいいことあったのか。

    What are you smirking at? Did something good happen?

    Tatoeba · CC BY 2.0 FR · Source

  3. 何なににやにやしてんの? 気持きもち悪わるい。

    What are you grinning for like that? It creeps me out.

    Tatoeba · CC BY 2.0 FR · Source

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