The Collaborative International Dictionary
Stringentness
Stringent \Strin"gent\ (str[i^]n"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.
[1913 Webster] -- Strin"gent*ly, adv. -- Strin"gent*ness,
n.
Wiktionary
stringentness
n. The quality of being stringent.