mōrōsĭtas, ātis, f. [morosus]. 1.Peevishness, fretfulness, moroseness (rare but class.): si in morositatem inutilem et odiosam incidamus, Cic. Off. 1, 25, 88: morositas et ea vitia, quae dixi, habent aliquid excusationis, id. Sen. 18, 65.—2.Niceness, pedantry: affectatione et morositate nimiā obscurabat stilum,