insubstantial: ความหมายและคำอธิบายความหมาย

Not firm or solid; weak or flimsy: a shed made of insubstantial materials.

Very small or negligible, as in importance, size, or amount: an insubstantial volume of traffic.

Lacking or appearing to lack substance or reality:"the insubstantial vapor of an autumn field"(Loren Eiseley).