Antonyms of adj nonnatural

1 sense of nonnatural

Sense 1
nonnatural, otherworldly, preternatural, transcendental -- (existing outside of or not in accordance with nature; "find transcendental motives for sublunary action"-Aldous Huxley)

INDIRECT (VIA supernatural) -> natural -- (existing in or in conformity with nature or the observable world; neither supernatural nor magical; "a perfectly natural explanation")

Similarity of adj nonnatural

1 sense of nonnatural

Sense 1
nonnatural, otherworldly, preternatural, transcendental -- (existing outside of or not in accordance with nature; "find transcendental motives for sublunary action"-Aldous Huxley)
       => supernatural (vs. natural) -- (not existing in nature or subject to explanation according to natural laws; not physical or material; "supernatural forces and occurrences and beings")