320 entries under adjective topic. ×

4
inhuman
4
life-threatening
4
pestiferous(bad, evil, harmful, injurious)
4
septic
4
toxicant
3
abominable(awful, terrible, horrible, afraid)
3
abysmal(awful, terrible, horrible, afraid)
3
almighty(awful, terrible, horrible, afraid)
3
ashen(boring, tedious, gaunt, skeletal)
3
atrocious(awful, terrible, horrible, afraid)
3
beastly(awful, terrible, horrible, afraid)
3
blatant(awful, terrible, horrible, afraid)
3
caustic
3
chronic(awful, terrible, horrible, afraid)
3
crashing(awful, terrible, horrible, afraid)
3
damnable(awful, terrible, horrible, afraid)
3
darn(awful, terrible, horrible, afraid)
3
deuced(awful, terrible, horrible, afraid)
3
doggone(awful, terrible, horrible, afraid)
3
dreaded(awful, terrible, horrible, afraid)
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APASmart Define. (2016). deadly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/deadly/thesaurus/synonyms
ChicagoSmart Define. 2016. "deadly thesaurus" https://smartdefine.org/deadly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, deadly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/deadly/thesaurus/synonyms>.
MLASmart Define. "deadly thesaurus" 26 March 2016. Web. 24 September 2026. <https://smartdefine.org/deadly/thesaurus/synonyms>