まあるいConjugationMeanings1i-adjectiveround; circular; sphericalcolloquialColloquial, somewhat childish or cute-sounding variant of 丸い (まるい). Used for describing round shapes in casual speech.See also: 丸いまあるいお月つきさまが出でてるよ。A round moon is out.この石いし、まあるくてきれいだね。This stone is round and pretty, isn't it?