- The definition of requisite is something required or necessary.
An example of requisite is your identification before you can get on a plane.
- Requisite is something that is necessary or required to achieve some goal or do some task.
An example of requisite is identification to get on a plane.
Origin of requisiteClassical Latin requisitus, past participle of requirere: see require
Origin of requisiteMiddle English, from Latin requīsītus, past participle of requīrere, to require; see require.
(comparative more requisite, superlative most requisite)