ニヤリ LinksSentence search for ニヤリSentence search for にやりEdit in JMdict Adverb (fukushi), Adverb taking the 'to' particle1. meaningfully (smiling, grinning, etc.); suggestively; broadly; sneeringlyOnomatopoeic or mimetic wordOther formsにやり Discussions Log in to talk about this word.