(1)生ぬるい
(2)強さがなくなる
(3)lose intensity; "His enthusiasm cooled considerably"
(4)loose heat
さらに詳しく
(1)熱のないこと
(2)the absence of heat; "the coldness made our breath visible"; "come in out of the cold"; "cold is a vasoconstrictor"
(1)冷たい感情的でない態度で
(2)in a cold unemotional manner; "he killed her in cold blood"