in·fre·quent 
/ɪnˈfri:kwənt/ adjective
/ɪnˈfri:kwənt/ adjective [more infrequent; most infrequent] : not happening often : not frequent
▪ an infrequent event ▪ We made infrequent stops/visits along the way. ▪ Problems with the network have become a not infrequent occurrence. [=have become a rather frequent occurrence]
▪ an infrequent event ▪ We made infrequent stops/visits along the way. ▪ Problems with the network have become a not infrequent occurrence. [=have become a rather frequent occurrence]
— infrequency noun [noncount]
▪ She complained about the infrequency of her son's visits. [=she complained because her son did not visit her often]
▪ She complained about the infrequency of her son's visits. [=she complained because her son did not visit her often]
— in·fre·quent·ly adverb
▪ a word that is infrequently used ▪ an error not infrequently made [=an error rather frequently made] by beginners
▪ a word that is infrequently used ▪ an error not infrequently made [=an error rather frequently made] by beginners
