Meaning

2 senses
  1. (uncountable)The belief that only the extinction of humanity will lead to the recovery of the Earth's environment.

  2. (uncountable)The additional challenge, in playing a roguelike game, of killing all creatures to extinction.

Origin

From extinction + -ism.

From extinction + -ism.

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extinctionism — meaning, examples, forms, synonyms | Krumeto