Substantial refers to something of considerable importance, size, or worth. It implies a significant amount or degree and suggests that something is real, solid, and not merely superficial.
It can describe physical objects, abstract concepts, or amounts of money. Essentially, it denotes something that is more than just adequate or minimal, implying a notable and often significant impact or presence.
HD
TIDY REAL
MEATY HEFTY SOLID AMPLE MAJOR STOUT BEEFY
GOODLY STRONG HEARTY SQUARE
STAUNCH
TANGIBLE MATERIAL
HEAVYDUTY
SATISFYING
SIGNIFICANT SUBSTANTIVE
CONSIDERABLE