cold-blooded
adjective
[ ˌkəʊldˈblʌdɪd ]
• denoting animals whose body temperature varies with that of the environment (e.g. fish); poikilothermic.
• without emotion or pity; deliberately cruel or callous.
• "a cold-blooded murder"
Similar:
cruel,
savage,
brutal,
callous,
barbaric,
barbarous,
sadistic,
inhuman,
pitiless,
merciless,
ruthless,
unforgiving,
unpitying,
inhumane,
unfeeling,
uncaring,
heartless,
hard,
severe,
harsh,
austere,
cold,
cold-hearted,
unsympathetic,
unemotional,
unfriendly,
uncharitable,
hard-hearted,
stony-hearted,
with a heart of stone,
hard-boiled,
hard-nosed,
thick-skinned,
in cold blood
• without feeling or mercy; ruthlessly.
• "they were killed in cold blood"
