Substantial

/səbˈstænʃəl/

Meaning & Definition

adjective

of considerable importance, size, or worth

The foundation received a substantial donation that boosted its projects.

having a firm basis in reality and therefore important, meaningful, or considerable

There is substantial evidence supporting the claim that climate change is accelerated by human activity.

relating to the essence or essential qualities of something

The committee made substantial changes to the proposal before voting.

From Middle English *substantial*, from Latin *substantialis*, from *substantia*.

substantial amount

a large quantity of something

substantial difference

a noticeable or significant difference

substantial basis

a solid foundation or support for an argument

substance

the real physical matter of which a person or thing consists

substantiate

to provide evidence to support or prove the truth of something

A large amount or degree of something, often used in informal conversation.

That party was substantial, a lot of people showed up!

Substantial profits or gains, often referring to money.

They made some substantial cash flipping houses.