substantive
Definitions
Having a firm basis in reality and therefore important, meaningful, or considerable.
Having independent existence; independent in function or position.
Dealing with the essential or fundamental aspects of a matter.
Examples
The committee made substantive changes to the proposal before it was finally approved.
There was no substantive evidence to support the claims made by the witness.
Synonyms
significant meaningful essential substantial important weighty considerable
Antonyms
insignificant trivial superficial unimportant negligible frivolous minor