requisite.

Necessary to meet a condition or complete a task.

Use it for

Words that belong together

• requisite knowledge
• requisite approval

On the page

Applicants lacked the requisite approval for fieldwork.

Usage notes

Primary category: academic / formal. Forms: Normally non-gradable adjective. Noun singular requisite; plural requisites. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: analysis, evaluation, qualification. Commonness: moderately common.