Substantial (adjective)

1. Of ample or considerable amount, quantity, size, etc.
2. Having substance; real; not illusory.
3. Thorough; complete; entire.

Origin:

Middle english, from latin substantialis, from substantia.

Examples:

1. He had a substantial amount of money in the bank.
2. The evidence against him was substantial.
3. The company has a substantial market share.
4. The house was a substantial building.
5. The meal was substantial, it filled me up.