The Collaborative International Dictionary of English v.0.48:
Affableness \Af"fa*ble*ness\, n. Affability. [1913 Webster]WordNet (r) 3.0 (2006):
affableness n 1: a disposition to be friendly and approachable (easy to talk to) [syn: affability, affableness, amiability, amiableness, bonhomie, geniality]