Synonyms|570Antonyms|77|Broader|24Narrower|4Related|189
3
action
3
annihilation
3
natural process
2
death
2
ecological crisis(environment, cause, ecology)
2
inaction
2
natural action
2
termination
1
barrenness
1
destruction
1
ecological catastrophe(disaster, catastrophe, ecology)
1
ending
1
extinguishing
1
fatality
1
genetics
1
inactivity
1
nirvana
1
nonexistence
1
nothing(noun, adjective)
0
activity
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APASmart Define. (2015). extinction thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/extinction/thesaurus/broader
ChicagoSmart Define. 2015. "extinction thesaurus" https://smartdefine.org/extinction/thesaurus/broader (accessed September 22, 2026).
HarvardSmart Define 2015, extinction thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/extinction/thesaurus/broader>.
MLASmart Define. "extinction thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/extinction/thesaurus/broader>