Decline
Decline noun - A gradual sinking and wasting away of mind or body.
Extinction and decline are semantically related in degradation topic. In some cases you can use "Extinction" instead a noun "Decline", when it comes to topics like degeneration.
Extinction
Extinction noun - The state or fact of being rendered nonexistent, physically unsound, or useless.
Decline and extinction are semantically related in degradation topic. Sometimes you can use "Decline" instead a noun "Extinction", if it concerns topics such as degeneration.
Nearby Word: extinct
Mutual synonyms
How words are described
| similar | similar decline | similar extinction |
| mass | mass decline | mass extinction |
| effective | effective decline | effective extinction |
| massive | massive decline | massive extinction |
| Other adjectives: great, bad, gradual, major, societal, possible, final, apparent, mysterious, inevitable, subsequent, eventual, cultural, recent, sudden, economic, aforementioned, genetic, biggest. | ||
Both words in one sentence
- Due to Nier's actions, humanity begins its inevitable decline and extinction. (NieR)
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They're a clan of winged reptilian warriors who regularly tangle with gangsters, mercenaries, cyborgs, demons and Fae spirits, and they've successfully managed to outlast the gradual decline and extinction of the rest of the Gargoyle species.
Source: Badass Family - A highly advanced species faced with a slow decline into extinction embarks on a long-term project to send all of their accumulated knowledge out into the universe in a self-sustaining "Prior Wave".
Source: Fling a Light into the Future
Cite this Source
Extinction and Decline. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/decline/extinction
Decline & Extinction. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/decline/extinction>.
Extinction or Decline. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/decline/extinction.
Google Ngram Viewer shows how "decline" and "extinction" have occurred on timeline