Synonyms: cold, cold-blooded, inhuman, insensate
Definition: without compunction or human feeling
Usage: in cold blood; cold-blooded killing; insensate destruction
Similar words: inhumane
Definition: lacking and reflecting lack of pity or compassion
Usage: humans are innately inhumane; this explains much of the misery and suffering in the world; biological weapons are considered too inhumane to be used
Synonyms: cold-blooded
Definition: having cold blood (in animals whose body temperature is not internally regulated)
Similar words: heterothermic, ectothermic, poikilothermic, poikilothermous
Definition: of animals except birds and mammals; having body temperature that varies with the environment