1
inanimate(calm, still, lifeless, inactive, inert)
1
inert(adjective, calm, quiet, smooth, still)
1
inexcusably
1
infernally
1
injurious(adjective, dangerous)
1
inordinately
1
internecine
1
intolerably
1
killing
1
lamentably
1
lethally
1
life-threatening(adjective, dangerous)
1
lifeless(adjective, calm, quiet, smooth, still)
1
lurid
1
malign
1
menacing(adjective, dangerous)
1
miserably
1
morbid
1
mortally
1
mortuary
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APASmart Define. (2015). deathly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/deathly/thesaurus/synonyms
ChicagoSmart Define. 2015. "deathly thesaurus" https://smartdefine.org/deathly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, deathly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/deathly/thesaurus/synonyms>.
MLASmart Define. "deathly thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/deathly/thesaurus/synonyms>