neutralism

noun

1. (countable, uncountable)The state of being neutral; neutrality.
2. (countable, uncountable)A political policy of nonalignment in a situation of conflict.
3. (countable, uncountable)The neutral theory of molecular evolution, holding that, at the molecular level, most evolutionary changes and variation within and between species are caused not by natural selection but by genetic drift of mutant alleles that are neutral.