substantial

Etymology

From Old French substantiel.

adj

1. Having a substance; actually existing.
   substantial life
2. Not imaginary; real; actual; true; veritable.
   1850s, Cardinal John Henry Newman, The Rise and Progress of Universities to do some substantial good, is the compensation for much incidental imperfection
3. Corporeal; material; firm.
4. Having good substance; strong; stout; solid; firm.
   substantial cloth
   a substantial fence or wall
5. Possessed of goods or an estate; moderately wealthy.
   a substantial freeholder
6. Large in size, quantity, or value; ample; significant.
   He inherited a substantial amount of money from his uncle.
   A substantial number of people went to the event.
7. Most important; essential.
8. Satisfying; having sufficient substance to be nourishing or filling.
   I don't just want a snack; I need something substantial.
   Teddy had a few crackers in his backpack, but he needed something more substantial if he was to survive a three-day trek.

noun

1. Anything having substance; an essential part.