Insubstantiality - The Free Dictionary Not firm or solid; weak or flimsy: a shed made of insubstantial materials 2 Very small or negligible, as in importance, size, or amount: an insubstantial volume of traffic 3 Lacking or appearing to lack substance or reality: "the insubstantial vapor of an autumn field" (Loren Eiseley) in′sub·stan′ti·al′i·ty (-shē-ăl′ĭ-tē) n
insubstantiality - Wiktionary, the free dictionary Noun [edit] insubstantiality (countable and uncountable, plural insubstantialities) The state or quality of being insubstantial synonym Synonym: unsubstantiality