Senses
不温不火/ 不溫不火 lukewarm
neither cold nor hot; moderate or mediocre, used to describe things like market demand, sales, or television ratings
不温不火/ 不溫不火 unruffled
neither gentle nor hot-tempered; composed or calm in performance or manner
不温不火/ 不溫不火 detached
neither warm nor angry; showing a cold, indifferent, or standoffish attitude when responding to others