Antonyms of adj cold-blooded

2 senses of cold-blooded

Sense 1
cold, cold-blooded, inhuman, insensate -- (without compunction or human feeling; "in cold blood"; "cold-blooded killing"; "insensate destruction")

INDIRECT (VIA inhumane) -> humane -- (marked or motivated by concern with the alleviation of suffering)

Sense 2
cold-blooded (vs. warm-blooded) -- (having cold blood (in animals whose body temperature is not internally regulated))

warm-blooded (vs. cold-blooded) -- (having warm blood (in animals whose body temperature is internally regulated))
        => homoiothermic, homeothermic, homothermic -- (of birds and mammals; having constant and relatively high body temperature)

Similarity of adj cold-blooded

2 senses of cold-blooded

Sense 1
cold, cold-blooded, inhuman, insensate -- (without compunction or human feeling; "in cold blood"; "cold-blooded killing"; "insensate destruction")
       => inhumane (vs. humane) -- (lacking and reflecting lack of pity or compassion; "humans are innately inhumane; this explains much of the misery and suffering in the world"; "biological weapons are considered too inhumane to be used")

Sense 2
cold-blooded (vs. warm-blooded) -- (having cold blood (in animals whose body temperature is not internally regulated))
       => poikilothermic, poikilothermous, heterothermic, ectothermic -- (of animals except birds and mammals; having body temperature that varies with the environment)