酸っぱい
Kana: すっぱい
sour
Example sentence
このりんごは少し酸っぱいです。
このりんごはすこしすっぱいです。
This apple is a little sour.
What 酸っぱい means
酸っぱい (すっぱい) is a Japanese word meaning “sour”. It belongs to the Describing Words topic and appears at Level 3 (and again in Level 4), so it is one of the words worth learning early when you study Japanese.