| sleep(noun, release, ruin, finish) | |
| afterlife(noun, release, ruin, finish) | |
| bereavement(noun, release, ruin, finish) | |
| carnage(noun, ruin, slaughter, loss) | |
| casualty(noun, release, ruin, finish) | |
| completion | |
| consummation | |
| crack of doom(expression, idiom, destruction) | |
| darkness(noun, release, ruin, finish) | |
| denouement | |
| determination | |
| doomsday | |
| eschatology | |
| euthanasia(noun, release, ruin, finish) | |
| finis(noun, release, ruin, finish) | |
| grim reaper(noun, expression, release, ruin) | |
| havoc(noun, ruin, collapse, failure) | |
| heaven(noun, release, ruin, finish) | |
| mortality(noun, release, ruin, finish) | |
| necrosis(noun, release, ruin, finish) |
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| APA | Smart Define. (2015). extinction thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/extinction/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extinction thesaurus" https://smartdefine.org/extinction/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, extinction thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/extinction/thesaurus/synonyms>. |
| MLA | Smart Define. "extinction thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/extinction/thesaurus/synonyms> |