'Exactingness' definitions:

Definition of 'Exactingness'

From: GCIDE

Exacting \Ex*act"ing\, a. Oppressive or unreasonably severe in making demands or requiring the exact fulfillment of obligations; harsh; severe. "A temper so exacting." --T. Arnold -- {Ex*act"ing*ly}, adv. -- {Ex*act"ing*ness}, n. [1913 Webster]