noun.
A cheerful and friendly disposition; approachable.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a cheerful and agreeable mood
noun.
a disposition to be friendly and approachable (easy to talk to)
Word Usage
"The rage of Cuttikins at this interruption was considerable; he looked at me as if he could have eaten me raw, and remarked with a concentrated spleen, 'Well, I must say, never did I see any human being so improved in amiability as you are."