21
dread(noun, adjective, awful, terrible, horrible)
19
fearful(adjective, good, unpleasant, awful, terrible)
19
horrific(adjective, bad, awful, terrible, rotten)
19
repulsive(adjective, severe, nasty, offensive, unpleasant)
18
terrifying(adjective, bad, unpleasant, awful, terrible)
17
harrowing(adjective, awful, terrible, horrible, painful)
17
heinous(adjective, evil, offensive, unpleasant, awful)
17
outrageous(adjective, bad, awful, foul, unreasonable)
16
cruel(adjective, evil, unpleasant, awful, terrible)
16
disgusting(adjective, nasty, offensive, unpleasant, awful)
16
nasty(adjective, unpleasant, awful, terrible, disgusting)
16
unspeakable(adjective, offensive, unpleasant, awful, terrible)
15
dreaded(adjective, awful, terrible, horrible, afraid)
15
bad(adjective, offensive, unpleasant, awful, terrible)
15
lurid(adjective, bad, evil, unpleasant, awful)
14
odious(adjective, awful, terrible, horrible, painful)
14
foul(adjective, endured)
14
revolting(adjective, severe, nasty, offensive, unpleasant)
14
vile(adjective, severe, offensive, intense, unpleasant)
13
offensive(adjective, severe, nasty, unpleasant, awful)
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APASmart Define. (2015). horrendous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/horrendous/thesaurus/synonyms
ChicagoSmart Define. 2015. "horrendous thesaurus" https://smartdefine.org/horrendous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, horrendous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/horrendous/thesaurus/synonyms>.
MLASmart Define. "horrendous thesaurus" 17 July 2015. Web. 24 September 2026. <https://smartdefine.org/horrendous/thesaurus/synonyms>