in·sub·stan·tial / ˌɪn səbˈstæn ʃəl / Show Spelled [in-s uh b-stan-sh uh l] Show IPA adjective 1. not substantial or real; lacking substance: an insubstantial world of dreams. 2. not solid or firm; weak; flimsy. 3. not substantial in amount ...
Thesaurus Legend: Synonyms Related Words Antonyms Adv. 1. insubstantially - not substantially; lacking substantial expression or fullness impalpably ... at 610 (considering whether identical methods utilizing different materials to ...