'candour' definitions:

Definition of 'candour'

noun

The quality of being honest and straightforward in attitude and speech [syn: candor, candour, candidness, frankness, directness, forthrightness]

noun

Ability to make judgments free from discrimination or dishonesty [syn: fairness, fair-mindedness, candor, candour] [ant: unfairness]

From: GCIDE

Candor \Can"dor\, n. [Written also candour.] [L. candor, fr. cand["e]re; cf. F. candeur. See candid.] [1913 Webster]
1. Whiteness; brightness; (as applied to moral conditions) usullied purity; innocence. [Obs.] [1913 Webster]
Nor yor unquestioned integrity Shall e'er be sullied with one taint or spot That may take from your innocence and candor. --Massinger. [1913 Webster]
2. A disposition to treat subjects with fairness; freedom from prejudice or disguise; frankness; sincerity. [1913 Webster]
Attribute superior sagacity and candor to those who held that side of the question. --Whewell. [1913 Webster]