nonism noun4 •The abstention from harmful activities, foods, and so on. •The denial of higher-level meaning beyond physical existence; materialism.Sir Oliver's standing as a scientist makes his book interesting as a statement of the reasons a scientist can give in opposition to the conclusions of materialistic nonism. — 1906 •The stance that the nature of reality is unknowable because all information comes through the senses, which are unreliable.Neo-Platonism "tended to break the unity of life and thought which Christianity sought to establish," yet withal it prevented a too "facile nonism." — 1904 •The belief in the existence of entities and events within a domain that can only be defined in terms of what it is not.