imperative
//ɪmˈpɛrətɪv//
Adjective
imperativeCanonical form
1
Of vital importance; crucial or essential.
It is imperative that we act quickly to solve this problem.
2
Giving an authoritative command; expressing an order.
The officer spoke in an imperative tone, leaving no room for argument.
3
(Grammar) Relating to or denoting the mood of a verb that expresses a command or exhortation.
"Stop" is an imperative verb in this sentence.
Antonym
Noun
imperativeSingular
imperativesPlural
1
An essential or urgent thing.
Reducing carbon emissions is an imperative for all nations.
2
(Grammar) The imperative mood or a verb in this mood.
In English, "Stop!" is an example of a verb in the imperative.