144 entries under terrible topic. ×

3
mortal(adjective, awful, horrible, afraid)
3
parlous(adjective, awful, horrible, afraid)
3
perishing(adjective, awful, horrible, afraid)
3
scarey(adjective, awful, horrible, afraid)
3
splitting(adjective, awful, horrible, afraid)
3
towering(adjective, awful, horrible, afraid)
3
tragic(adjective, awful, horrible, afraid)
3
tragical(adjective, awful, horrible, afraid)
3
unearthly(adjective, awful, unreasonable, shocking)
3
very bad(adjective, awful, horrible, afraid)
3
woesome(adjective, awful, horrible, afraid)
2
astounding(adjective, awful, disgusting, grand)
2
nauseating(adjective, awful, grim, shocking)
2
nightmarish(adjective, nasty, awful, unreasonable)
2
uncanny(adjective, awful, unreasonable, shocking)
2
unnatural(awful, grim, shocking, upsetting)
1
animal(adjective, strong, severe, intense, violent)
1
blustery(adjective, strong, severe, intense, violent)
1
boisterous(adjective, strong, severe, intense, violent)
1
bold(adjective, strong, severe, intense, violent)
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APASmart Define. (2016). frightening thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/frightening/thesaurus/synonyms
ChicagoSmart Define. 2016. "frightening thesaurus" https://smartdefine.org/frightening/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, frightening thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/frightening/thesaurus/synonyms>.
MLASmart Define. "frightening thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/frightening/thesaurus/synonyms>