requisite
//ˈrɛkwɪzɪt//
Adjective
requisiteCanonical form
1
Made necessary by particular circumstances or regulations; required.
She has all the requisite qualifications for the job.
Antonym
Noun
requisiteSingular
requisitesPlural
1
A thing that is necessary for the achievement of a specified end.
A good education is a requisite for success in this field.