INFREQUENT
Source: 566, 567
infrequent. Infrequent, a. rare, unusual, uncommon, strange
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In‐fre″quent (?), a. [[L. infrequens : cf. F. infrequent. See In- not, and Frequent.]] Seldom happening or occurring; rare; uncommon; unusual. The act whereof is at this day infrequent or out of use among all sorts of men. Sir T. Elyot.