· of considerable importance, size, or worth; "won by a substantial margin"
Synonym(s): significant
· of or relating to the real nature or essential elements of something; "a substantial argument"
Synonym(s): substantive
· having substance or capable of being treated as fact; not imaginary; "the substantial world"; "a mere dream, neither substantial nor practical"; "The wind was violent and felt substantial enough to lean against"
Antonym(s): insubstantial
· providing abundant nourishment; "a hearty meal"; "good solid food"; "ate a substantial breakfast"; "four square meals a day"
Synonym(s): hearty, satisfying, solid, square
· of good quality and condition; solidly built; "a solid foundation"; "several substantial timber buildings"
· having an abundant supply of money or possessions of value; "an affluent banker"; "a speculator flush with cash"; "not merely rich but loaded"; "moneyed aristocrats"; "wealthy corporations"; "a substantial family"
Synonym(s): affluent, flush, loaded, moneyed, wealthy