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adj.
having substance or capable of being treated as fact; not imaginary; "the substantial world"; "a mere dream, neither substantial nor practical"; "most ponderous and substantial things"- Shakespeare
adj.
large in amount or extent or degree; "it cost a considerable amount"; "a goodly amount"; "received a hefty bonus"; "a respectable sum"; "a tidy sum of money"; "a sizable fortune"
adj.
too small or unimportant to merit attention; "passed his life in an inconsiderable village"; "their duties were inconsiderable"; "had no inconsiderable influence"
adj.
characterized by lightness and insubstantiality; as impalpable or intangible as air; "figures light and aeriform come unlooked for and melt away"- Thomas Carlyle; "aerial fancies"; "an airy apparition"; "physical rather than ethereal forms"