What does にこやか mean?
にこやか is a Japanese adjective meaning “smiling; beaming; radiant; bright” in English. It is written as にこやか in hiragana, and nikoyaka in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
「怒ってない。ほら見て、このにこやかな笑顔」「それは作り笑いっていうんですよ」
"I'm not angry. Look, see this smiling face?" "That's what they call a forced smile!"