1. lack of depth of knowledge or thought or feeling (Freq. 1) • Syn: shallowness • Ant: profundity • Derivationally related forms: shallow (for: shallowness), superficial • Hypernyms: depth • Hyponyms: glibness, slickness, sciolism 2. shallowness in terms of affecting only surface layers of something - he ignored the wound because of its superficiality • Derivationally related forms: superficial • Hypernyms: shallowness