Synonyms|103Antonyms|14|Broader|0Narrower|3Related|21
1
unkindness(noun, violence, severity, torture, cruelty)
1
unmercifulness(noun, pitilessness)
1
vandalism
1
venom(noun, violence, torture, cruelty, spite)
0
acrimony
0
animosity
0
atrociousness(noun, wickedness, horror, barbarity)
0
awfulness
0
barbarousness(noun, wickedness, horror, barbarity)
0
cancer
0
cold-bloodedness(noun, cruelty, harshness, unkindness, callousness)
0
devilishness
0
deviltry
0
diablerie
0
dreadfulness
0
enmity
0
evil
0
frightfulness
0
ghoulishness
0
hideousness
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APASmart Define. (2015). fiendishness thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fiendishness/thesaurus/synonyms
ChicagoSmart Define. 2015. "fiendishness thesaurus" https://smartdefine.org/fiendishness/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fiendishness thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fiendishness/thesaurus/synonyms>.
MLASmart Define. "fiendishness thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/fiendishness/thesaurus/synonyms>