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Synonyms for «fiendish»
The word
"fiendish"
describes something or someone that is wicked, evil, or extremely difficult.
Full definition
insidious
hellish
devilish
perfidious
devious
fiend
satanic
nefarious
treacherous
infernal
monstrous
abominable
conniving
vilest
malevolent
odious
malicious
traitorous
spiteful
wicked
sinister
dastardly
heinous
maliciously
beastly
appalling
ingenious
frightful
quirky
scheming
dreadful
crafty
disloyal
despicable
ink
hellfire
vicious
faithless
awful
eerie
demonic
queer
underworld
hex
crazed
inhumane
menacing
evil
uncanny
scurvy
ominous
frantic
inhuman
sneaky
delirious
wickedness
demented
wretched
odd
horrific
awfully
hateful
deranged
slimy
insane
machiavellian
horrid
seductive
diabolical
innocent
hell-bent
ghastly
criminal
strong
frenzied
black
devil
angelic
gruesome
backstabbing
unkind
bizarre
unbelievable
mad
spooky
catty
severe
deceitful
supernatural
sophisticated
lately
cunning
fabulous
mean
wily
nutty
caviar
horrifying
untamed
involved
See also
Definition of FIENDISH
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