substantive

adjective
UK /səbˈstæn.tɪv/
US /ˈsʌb.stən.tɪv/

Something substantive is real and important, not just for show.

The teacher gave us substantive feedback that helped us improve our project.


OTHER MEANINGS

2. Having a strong, solid base or structure.

The bridge has a substantive design that will last for many years.

3. In grammar, a word that names a person, place, or thing (a noun).

In the sentence 'The dog barked,' the word 'dog' is a substantive.

4. Involving actual proof or evidence rather than guesses.

The detective found substantive clues that solved the case.