494 entries under adjective topic. ×

16
unkind(person, mean, bad, wrong)
15
unfortunate(evil, nasty, sad, unhappy)
14
vindictive(person, evil, nasty, negative)
14
malign(evil, nasty, dark, negative)
14
malignant(bad, evil, nasty, negative)
14
baneful(evil, nasty, negative, malevolent)
14
fiendish(person, evil, unwarmhearted)
14
villainous(false, behavior, wicked, deceitful)
13
creepy(bad, nasty, awful, disgusting)
13
base(unpleasant, corrupt, wicked, horrible)
12
dishonest(evil, nasty, false, corrupt)
12
corrupt(evil, nasty, false, wicked)
12
dismal(bad, obscure, sad, dark)
12
gloomy(hard, obscure, rough, nasty)
12
injurious(bad, evil, nasty, harmful)
12
portentous(nasty, black, menacing, baleful)
12
unpropitious(mean, bad, wrong, evil)
11
forbidding(person, appearance, rough, nasty)
11
minatory
11
unsympathetic(person, negative, behavior, unwarmhearted)
10 years ago|29k views|share |citing 
APASmart Define. (2016). sinister thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sinister/thesaurus/synonyms
ChicagoSmart Define. 2016. "sinister thesaurus" https://smartdefine.org/sinister/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sinister thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sinister/thesaurus/synonyms>.
MLASmart Define. "sinister thesaurus" 3 April 2016. Web. 24 September 2026. <https://smartdefine.org/sinister/thesaurus/synonyms>