1. Noun pleasantness, charm, kindness, sweetness, good humour, attractiveness, friendliness, sociability, cheerfulness, good nature, sweetness and light (informal), affability, geniality, kindliness, sweet temper, agreeableness, benignity, winsomeness, delightfulness, lovableness, amiableness, engagingness, pleasingness I found his Amiability charming.