1.Definition: having an abundant supply of money or possessions of value
"A substantial family"
2.Definition: 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"
3.Definition: of considerable importance, size, or worth
"Won by a substantial margin"
4.Definition: of good quality and condition; solidly built
"Several substantial timber buildings"
5.Definition: of or relating to the real nature or essential elements of something
"A substantial argument"
6.Definition: providing abundant nourishment
"Ate a substantial breakfast"