adj.1 a of real importance or value (made a substantial contribution). b of large size or amount (awarded substantial damages).
2 of solid material or structure; stout (a man of substantial build; a substantial house).
3 commercially successful; wealthy.
4 essential; true in large part (substantial truth).
5 having substance; real.
Derivatives:
substantiality n. substantially adv.
Etymology: ME f. OF substantiel or LL substantialis (as SUBSTANCE)