4
dread(adjective, awful, terrible, horrible, afraid)
4
egregious(adjective, bad, wrong, evil, nasty)
4
extreme(adjective, shocking, shameful, disgraceful, endured)
4
ferocious(adjective, awful, terrible, horrible, afraid)
4
ignoble(adjective, evil, nasty, offensive, base)
4
improper
4
in bad taste(expression, idiom)
4
insulting
4
knavish
4
malicious(adjective, wicked)
4
morbid(adjective, awful, terrible, horrible, afraid)
4
naughty(adjective, wicked)
4
perverted(adjective, evil, shameful, depraved)
4
satanic
4
tremendous(adjective, awful, terrible, horrible, afraid)
4
ungodly(adjective, offensive, unpleasant, awful, terrible)
4
unlawful
4
unsightly(adjective, dislike, disgusting, horrible, ugly)
4
unutterable(adjective, unspeakable)
4
very bad(adjective, awful, terrible, horrible, afraid)
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APASmart Define. (2016). abominable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/abominable/thesaurus/synonyms
ChicagoSmart Define. 2016. "abominable thesaurus" https://smartdefine.org/abominable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, abominable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/abominable/thesaurus/synonyms>.
MLASmart Define. "abominable thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/abominable/thesaurus/synonyms>