prerequisite
noun
[ priːˈrɛkwɪzɪt ]
• a thing that is required as a prior condition for something else to happen or exist.
• "sponsorship is not a prerequisite for any of our courses"
Similar:
necessary condition,
precondition,
condition,
essential,
requirement,
requisite,
necessity,
proviso,
qualification,
imperative,
basic,
rudiment,
obligation,
duty,
sine qua non,
must,
prerequisite
adjective
• required as a prior condition.
• "the student must have the prerequisite skills"
Similar:
necessary,
needed,
required,
called for,
essential,
requisite,
vital,
basic,
of the essence,
indispensable,
imperative,
obligatory,
mandatory,
compulsory,
de rigueur,
needful,