Word Study
nudist
OXFORD DICTIONARY
nudist, n. a person who advocates or practises going unclothed.
Derivative
nudism n.
THESAURUS
nudist
bald, bare, bare-ass, bareness, birthday suit, decollete, ecdysiast, gymnosophical, gymnosophist, gymnosophy, in native buff, in puris naturalibus, in the altogether, in the buff, in the raw, naked, nakedness, naturism, naturist, naturistic, not a stitch, nude, nudism, nudity, peeled, raw, stark-naked, state of nature, stripper, stripteaser, the altogether, the nude, the raw, toplessness, with nothing on, without a stitchFor further exploring for "nudist" in Webster Dictionary Online