145 entries under terrible topic. ×

7
abysmal(adjective, awful, horrible, afraid)
7
eerie(adjective, bad, unpleasant, awful)
7
gross(adjective, awful, horrible, afraid)
7
hellish(adjective, awful, horrible, afraid)
7
miserable(adjective, awful, horrible, painful)
7
spine-chilling(adjective, bad, awful, disgusting)
6
flagitious(adjective, awful, horrible, afraid)
6
flagrant(adjective, awful, horrible, afraid)
6
formidable(adjective, bad, awful, shocking)
5
disagreeable(adjective, nasty, unpleasant, awful)
5
disastrous
5
grueling(adjective, awful, horrible, painful)
5
lousy(adjective, bad, nasty, offensive, unpleasant)
5
redoubtable(adjective, awful, dreadful)
5
ungodly(adjective, offensive, unpleasant, awful)
5
unsettling(adjective, bad, awful, disgusting)
5
woeful(adjective, awful, horrible, painful)
4
awe-inspiring
4
barbaric(adjective, vicious, shocking, brutal)
4
damnable(adjective, awful, horrible, afraid)
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APASmart Define. (2015). horrendous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/horrendous/thesaurus/synonyms
ChicagoSmart Define. 2015. "horrendous thesaurus" https://smartdefine.org/horrendous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, horrendous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/horrendous/thesaurus/synonyms>.
MLASmart Define. "horrendous thesaurus" 17 July 2015. Web. 29 September 2026. <https://smartdefine.org/horrendous/thesaurus/synonyms>