not infrequently

not infrequently の類語

often, repeatedly, frequently, usually, habitually, routinely, commonly, again and again, ordinarily

not infrequently の反意語

rarely, infrequently

not infrequently の言い換えを探すには

not infrequently（）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。