a. [ L. infrequens : cf. F. infrequent. See In- not, and Frequent. ] Seldom happening or occurring; rare; uncommon; unusual. [ 1913 Webster ]
The act whereof is at this day infrequent or out of use
among all sorts of men. Sir T. Elyot. [ 1913 Webster ]
adv. Not frequently; rarely. [ 1913 Webster ]