tepid water; lukewarm water
comfortable; easy; relaxed; complacent; cossetted; unstimulating; dull; uneventful
微温湯で顔を洗うと肌に優しい。
Washing your face with lukewarm water is gentle on the skin.
赤ちゃんのミルクは微温湯で溶かす。
Baby formula is dissolved in lukewarm water.
改革が進まず微温湯のような対応に終始した。
Reform made no headway, and the response was tepid throughout.