UNNATURALNESS • E-FREE TRANSLATION.COM • Definition of Unnaturalness

... hygiene,—wearing tight shoes or tight corsets, drinking strong coffee, smoking, reading while reclining, failing to insure clean air and clean bodies. Then there are other acts whose omission or commission violate no physical law so far as we can see, but whose unnaturalness we concede,—putting chalk on the eyebrows, wearing false hair or curious puffs, putting perfumery in the bath or on handkerchiefs, assuming artificial poses of body or mouth. These violations of natural law are forced upon us by ...

— Civics and Health • William H. Allen