315 entries under adjective topic. ×

3
insupportable
3
intolerable
3
menacing
3
mortal(awful, terrible, horrible, afraid)
3
off-putting(terrible, dirty, badly, scary)
3
outrageous(dislike, horrible, ugly, yuck)
3
parlous(awful, terrible, horrible, afraid)
3
perishing(awful, terrible, horrible, afraid)
3
piercing
3
scarey(awful, terrible, horrible, afraid)
3
scathing(awful, terrible, horrible, afraid)
3
severe(appearance, great, terrible, extreme)
3
shameful(dislike, unpleasant, awful, disgusting)
3
sinister(appearance, awful, terrible, dreadful)
3
splitting(awful, terrible, horrible, afraid)
3
startling
3
tormenting
3
torturous
3
towering(awful, terrible, horrible, afraid)
3
tragical(awful, terrible, horrible, afraid)
10 years ago|22k views|share |citing 
APASmart Define. (2016). frightful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/frightful/thesaurus/synonyms
ChicagoSmart Define. 2016. "frightful thesaurus" https://smartdefine.org/frightful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, frightful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/frightful/thesaurus/synonyms>.
MLASmart Define. "frightful thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/frightful/thesaurus/synonyms>