23
outrageous(adjective, bad, right, offensive, awful)
23
shocking(adjective, right, awful, terrible, horrible)
21
flagitious(adjective, awful, terrible, horrible, shocking)
21
repulsive(adjective, adverb, evil, low, offensive)
21
ugly(adjective, appearance, dislike, unpleasant, strange)
21
vicious(adjective, wrong, evil, nasty, harsh)
20
grisly(adjective, evil, awful, terrible, horrible)
20
wicked(adjective, evil, nasty, harsh, offensive)
19
odious(adjective, awful, terrible, horrible, shocking)
18
bad(adjective, evil, awful, terrible, wicked)
18
disgusting(adjective, adverb, low, offensive, base)
18
gargantuan(adjective, big, large)
18
ghastly(adjective, awful, terrible, horrible, afraid)
18
loathsome(adjective, adverb, evil, nasty, low)
18
vile(adjective, adverb, nasty, low, offensive)
17
freakish(adjective, unusual, strange, usual, shocking)
17
horrifying(adjective, severe, awful, foul, extreme)
17
titanic(adjective, great, big, large, size)
16
deformed(adjective, appearance, dislike, strange, disgusting)
16
grievous(adjective, severe, awful, terrible, horrible)
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APASmart Define. (2016). monstrous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/monstrous/thesaurus/synonyms
ChicagoSmart Define. 2016. "monstrous thesaurus" https://smartdefine.org/monstrous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, monstrous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/monstrous/thesaurus/synonyms>.
MLASmart Define. "monstrous thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/monstrous/thesaurus/synonyms>