substantial

having an abundant supply of money or possessions of value

“a substantial family”

providing abundant nourishment

“ate a substantial breakfast”

of good quality and condition; solidly built

“several substantial timber buildings”

of or relating to the real nature or essential elements of something

“a substantial argument”

having substance or capable of being treated as fact; not imaginary

“the substantial world”

of considerable importance, size, or worth

“won by a substantial margin”