4
baneful
4
fatal
4
lethal
4
mortal
3
deadly
3
deathly
3
destructive
3
feral
3
malignant
3
pernicious
3
virulent
2
blamed
2
brutal
2
dead
2
deadlier
2
deadliness
2
death-dealing
2
internecine
2
killing
2
malign
<12>
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APASmart Define. (2015). deathful thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/deathful/thesaurus/synonyms
ChicagoSmart Define. 2015. "deathful thesaurus" https://smartdefine.org/deathful/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, deathful thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/deathful/thesaurus/synonyms>.
MLASmart Define. "deathful thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/deathful/thesaurus/synonyms>