1.  candour(n = noun.attribute) candidness, candor, directness, forthrightness, frankness - the quality of being honest and straightforward in attitude and speech; Array
is a kind of honestness, honesty
has particulars: ingenuousness

2.  candour(n = noun.cognition) candor, fair-mindedness, fairness - ability to make judgments free from discrimination or dishonesty; Array
is a kind of impartiality, nonpartisanship

candour, n. (US candor) candid behaviour or action; frankness.

Etymology:
F candeur or L candor whiteness