shallow

Synonyms: cursory depthless empty flat hollow inconsiderable sand bar shelf shoal slight superficial surface trifling trivial unsound

Antonyms: deep

Synonyms: cursory empty empty-headed farcical featherbrained flighty flimsy foolish frivolous frothy halfbaked hollow idle inane lightweight meaningless paltry petty piddling puerile simple sketchy skin-deep slight superficial surface trifling trivial uncritical unthinking vain wishy-washy

Antonyms: aware considered deep intelligent thoughtful