warm-blooded

adjective

1 birds, like mammals, are warm-blooded:

technical homeothermic, homeothermal.

▷antonyms cold-blooded, poikilothermic.

2 warm-blooded young people who love each other:

passionate, ardent, red-blooded, hot-blooded, fervid, impetuous, emotional, intense, lively, spirited, fiery, tempestuous, hot, sultry, torrid.

▷antonyms cool, reserved.

warm-blooded Oxford Dictionary of English