also: あちい · あっちぃ · あちぃ
i-adjective
Very casual, slangy version of 熱い (あつい). Used mainly in informal speech or writing, often with an exclamatory tone. The geminated form あっちい is the most common.
See also: 熱い
このコーヒー、あっちい!
This coffee is hot!
やかんに触ったらあちかった。
I touched the kettle and it was hot.
Kanji spelling without gemination and with small ぃ; extremely rare.
Colloquial contraction of 熱い (あつい). The geminated form あっちい arises from emphatic gemination common in casual speech.