(Biochemistry) Being a substance that is required for normal functioning but cannot be synthesized by the body and therefore must be included in the diet:
Suitable or efficient for accomplishing a purpose:
The state or fact of being in need.
(Engineering) A statement (in domain specific terms) which specifies a verifiable constraint on an implementation that it shall undeniably meet or (a) be deemed unacceptable, or (b) result in implementation failure, or (c) result in system failure.
A condition of poverty or misfortune:
An act in the past which may be used as an example to help decide the outcome of similar instances in the future.
The definition of optional is available, but not required.
The definition of important is having great significance or consequence.
Without which not. Something that is indispensable and upon which something else relies.
The grade stating this requirement
Essential quality, fact, or thing
The definition of a must is something that has to be done.
The definition of a postulate is something accepted as truth and used as the basis for an argument or theory.
(Law) Without legal obligation or consideration:
An additional benefit or feature
(Graphical user interface) A button on a screen used to select an action (often "menu option")
Requisite is something that is necessary or required to achieve some goal or do some task.
Find another word for prerequisite. In this page you can discover 27 synonyms, antonyms, idiomatic expressions, and related words for prerequisite, like: essential, expedient, necessity, requirement, need, precedent, optional, important, sine qua non, necessary and condition.