Synonyms|134Antonyms|7|Broader|0Narrower|0Related|80
1
destructively(adverb, evilly)
1
detrimentally(adverb, evilly)
1
fatefully
1
feloniously(adverb, wickedly)
1
forbiddingly
1
harshly(adverb, evil behavior)
1
heinously(adverb, evilly)
1
hideously(adverb, evilly)
1
ill-naturedly(adverb, malevolently)
1
immorally(adverb, wickedly)
1
inauspiciously
1
inconsiderately(adverb, evil behavior)
1
indecently(adverb, wickedly)
1
iniquitously(adverb, wickedly)
1
loathsomely(adverb, evilly)
1
menacingly
1
monstrously(adverb, evilly)
1
obnoxiously(adverb, wickedly)
1
offensively(adverb, evilly)
1
portentously
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APASmart Define. (2016). sinisterly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sinisterly/thesaurus/synonyms
ChicagoSmart Define. 2016. "sinisterly thesaurus" https://smartdefine.org/sinisterly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sinisterly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sinisterly/thesaurus/synonyms>.
MLASmart Define. "sinisterly thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/sinisterly/thesaurus/synonyms>