117 entries under dreadful topic. ×

8
noisome(adjective, offensive, awful, terrible, disgusting)
7
execrable(adjective, mean, bad, nasty, awful)
7
sullen(adjective, mean, sad, harsh, sorrow)
6
evil(adjective, mean, hard, rough, nasty)
6
wicked(adjective, mean, bad, severe, nasty)
5
bothersome(adjective, hard, tough, severe, offensive)
5
cantankerous(adjective, mean, hard, evil, rough)
5
crabbed(adjective, mean, nasty, dirty, horrible)
5
detestable(adjective, mean, nasty, offensive, awful)
5
fierce(adjective, mean, bad, severe, harsh)
5
gloomy(adjective, sad, sorrow, depression, horrible)
5
grim(adjective, mean, hard, tough, severe)
5
menacing(adjective, person, tough, nasty, offensive)
5
truculent(adjective, horrible, disagreeable, obnoxious)
5
unkind(adjective, mean, hard, cool, tough)
5
vexatious(adjective, hard, severe, evil, rough)
5
vicious(adjective, mean, bad, hard, evil)
5
wretched(adjective, bad, difficult, horrible, disagreeable)
4
appalling(adjective, mean, severe, nasty, plain)
4
crabby(adjective, mean, nasty, dirty, horrible)
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APASmart Define. (2016). unpleasant thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unpleasant/thesaurus/synonyms
ChicagoSmart Define. 2016. "unpleasant thesaurus" https://smartdefine.org/unpleasant/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unpleasant thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unpleasant/thesaurus/synonyms>.
MLASmart Define. "unpleasant thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/unpleasant/thesaurus/synonyms>