The Collaborative International Dictionary
Fiendlike
Fiendlike \Fiend"like`\, a.
Fiendish; diabolical.
--Longfellow.
Wiktionary
fiendlike
a. Resembling a fiend.
Usage examples of "fiendlike".
In her mind it blazed fiendlike, and the man who forgave it rose a step or two on the sublime.
I gazed on his face, which became illuminated by a proud, triumphant, fiendlike smile.