Definition of Fiendish
Fiendish
fiend·ish
Definition/Meaning
(adjective)
wicked and devilish, extremely unpleasant or cruel;
e.g. Her methods were harsh and fiendish, but incredibly efficient.
(adjective)
(informal) extremely unpleasant or awkward, or exceedingly difficult or complicated;
e.g. I am glad to be done with that fiendish experience. We have been assigned a fiendish task.
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