Coldblooded is a synonym of fiendish.
As adjectives the difference between coldblooded and fiendish
is that coldblooded is while fiendish is sinister; evil; conniving; in the manner of a fiend.
fiendish
English
Adjective
(
en adjective)
Sinister; evil; conniving; in the manner of a fiend.
Derived terms
* fiendishly
* fiendishness
Anagrams
* finished