The definition of imperative is something that has authority or is absolutely necessary.(adjective)
Imperative is defined as a requirement or an order.(noun)
An example of imperative is a sergeant telling a soldier to do fifty push ups.
See imperative in Webster's New World College Dictionary
Origin: LL imperativus, commanding < pp. of L imperare, to command: see emperor
See imperative in American Heritage Dictionary 4
Origin: Middle English imperatif, relating to the imperative mood
Origin: , from Old French
Origin: , from Late Latin imperātīvus
Origin: , from Latin imperātus
Origin: , past participle of imperāre, to command; see emperor.
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