n. Sourness of temper; sulenness. [ 1913 Webster ]

Learn good humor, never to oppose without just reason; abate some degrees of pride and moroseness. I. Watts. [ 1913 Webster ]

☞ Moroseness is not precisely peevishness or fretfulness, though often accompanied with it. It denotes more of silence and severity, or ill-humor, than the irritability or irritation which characterizes peevishness. [ 1913 Webster ]