Ranked by relevance and common usage.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
32 translations across 21 languages.
10 total sentences available.
Somewhere there, on that desolate plain, was lurking this fiendish man, hiding in a burrow like a wild beast, his heart full of malignancy against the whole race which had cast him out. It needed but this to complete the grim suggestiveness of the barren waste, the chilling wind, and the darkling sky.
Source: tatoeba (6606609)
Tom is acting fiendish.
Source: tatoeba (11464180)
He's feeling rather fiendish.
Source: tatoeba (11535946)
I have come to warn you of a fiendish plot.
Source: tatoeba (11576946)
Showing 4 of 10 available sentences.
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.