(n.) The state or quality of being pleasant.

advantageousness agreeability agreeableness amiability auspiciousness beneficialness benevolence benignity blitheness blithesomeness brightness cheer cheerfulness cheeriness cheery vein class cogency cordiality desert enjoyableness eupeptic mien excellence expedience fairness favorableness fineness first-rateness geniality gladness gladsomeness good cheer goodliness goodness grace gratefulness happiness healthiness helpfulness hopefulness kindness merit niceness optimism pleasance profitableness quality radiance rewardingness rosy expectation sanguine humor sanguineness skillfulness soundness sunniness superiority sweetness and light usefulness validity value virtue virtuousness wholeness winsomeness worth