naturist

noun

1. One who follows a philosophical belief in a naked, natural life and prefers to live without clothes, often for reasons of ecology, health, religious belief, and/or ethical concerns.
2. One who believes in the doctrine of naturism, which attributes everything to nature.

   “I have thought fit to lay dovvn the tvvo foregoing limitations, […] partly becauſe they contain ſomething, that may be added to vvhat hath been lately repreſented on behalf of the divine providence (as it falls under the naturiſt’s conſideration.)”

adj

1. Of or relating to naturism, the philosophical belief in a naked, natural life and prefers to live without clothes, often for reasons of health, ecology, religious belief, and/or ethical concerns.
2. Relating to or believing in the doctrine of naturism, which attributes everything to nature.