irrevocable adjective 1. not to be revoked or recalled; unable...

irrevocable
adjective
1.
not to be revoked or recalled; unable to be repealed or annulled;unalterable:
an irrevocable decree.


substantive
1.
a noun.
2.
a pronoun or other word or phrase functioning or inflected like anoun.
adjective
3.
Grammar.

1. pertaining to substantives.
2. used in a sentence like a noun:
   a substantive adjective.
3. expressing existence:
   “to be” is a substantive verb.

4.
having independent existence; independent.
5.
belonging to the real nature or essential part of a thing; essential.
6.
real or actual.
7.
of considerable amount or quantity.
8.
possessing substance; having practical importance, value, or effect:
substantive issues under discussion.
9.
Law. pertaining to the rules of right which courts are called on to apply, as distinguished from rules of procedure (opposed to adjective).