pre requisite (adjective) prerequisite: necessary
Detalii: a perquisite is a profit or benefit in addition to a salary or wages or a gratuity or tip for services performed, while a prerequisite is something that is required in advance
Sinonime: bark, bawl,
bay, beller, blare,
bluster, bray,
call,
clamor, cry, howl,
low,
roar, rout, scream, shout, shriek,
wail, whoop, yawp, yell, yelp
Antonime: optional,
unnecessary,
voluntary