What is an antonym of imperative?

The antonym of imperative depends on the context of how "imperative" is being used. Here are a few possibilities:

If "imperative" means "essential" or "necessary":

* Optional

* Non-essential

* Unnecessary

* Discretionary

If "imperative" means "commanding" or "authoritative":

* Submissive

* Passive

* Suppliant

* Subordinate

* Non-binding

If "imperative" is used as a grammatical mood:

* Indicative

* Subjunctive

Example:

* Imperative: "You must finish this project by Friday."

* Antonym: "You don't have to finish this project by Friday."

It's crucial to consider the context to choose the most appropriate antonym.