(1)明白なことだけに、関係がある
(2)知性または知識の深さの欠乏
(3)lacking depth of intellect or knowledge; concerned only with what is obvious; "shallow people"; "his arguments seemed shallow and tedious"
さらに詳しく
(1)知識や思想や感情の深さがないこと
(2)lack of depth of knowledge or thought or feeling
