Webster’s Revised Unabridged Dictionary · 1913
Stringent
Strin′gent (strĭn′jent), a. [L. stringens, -entis, p. pr. of stringere to draw or bind tight. See Strain.] Binding strongly; making strict requirements; restrictive; rigid; severe; as, stringent rules.
They must be subject to a sharper penal code, and to a more stringent code of procedure. Macaulay.
— Strin′gent·ly, adv. — Strin′gent·ness, n.