Lacking enthusiasm or conviction; indifferent.

उदासीन

English Usage: His lukewarm response to the project proposal was disappointing.

Hindi Usage: परियोजना प्रस्ताव पर उनकी उदासीन प्रतिक्रिया निराशाजनक थी।

Moderately warm; slightly warm.

हल्का गरम

English Usage: The water was lukewarm, making it uncomfortable for a bath.

Hindi Usage: पानी हल्का गरम था, जिससे स्नान करना असहज हो गया।