Req″ui‐site, a. [L. requisitus, p. p. requirere; pref. re- re- + quaerere to ask. See Require.] Required by the nature of things, or by circumstances; so needful that it can not be dispensed with; necessary; indispensable.
All truth requisite for men to know. Milton.
Syn. — Necessary; needful; indispensable; essential.
— Req″ui‐site‐ly, adv. — Req″ui‐site‐ness, n.