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Fiendish
Synonyms for
fiendish
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artful
astute
atrocious
baffling
barbaric
barbarous
beastly
black-hearted
bloodthirsty
brutal
brutish
clever
complex
complicated
crafty
cruel
dark
demoniac
demoniacal
demonic
devilish
devious
diabolic
diabolical
difficult
evil
grim
hard-hearted
harsh
heartless
heinous
hellish
imaginative
infernal
ingenious
inhuman
inhumane
iniquitous
intricate
involved
knotty
malevolent
malicious
malignant
merciless
monstrous
murderous
nefarious
perplexing
pitiless
puzzling
ruthless
sadistic
sanguinary
satanic
savage
sharp
shrewd
spiteful
thorny
unfathomable
unfeeling
unholy
unspeakable
vicious
villainous
wicked
Opposites of
fiendish
There are 67 synonyms for fiendish
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