lukewarm; neither hot nor cold; neither warm nor chill; tepid ❍ 一交子时,你就是十六岁了,性情还是那样,~地,一点也不变,……(鲁迅 《故事新编·铸剑》71) After midnight you'll be sixteen,but you're still the same —so lukewarm.You never change.…/岛上的天气~。It is neither hot nor cold on the island.