Entry 2 senses · 2 variants Webster, 1913 Unfrequent · Un·fre·quent · IPA a. v. t. 01 a. Infrequent. 1. Infrequent. 02 v. t. To cease to frequent. 1. To cease to frequent.[Obs.] “They quit their thefts and unfrequent the fields.” — J. Philips.