previously

以前に,先に;前もって

previously の類語

earlier, before, formerly, recently, already, yesterday, historically, then, early, yet, once, ere, before now, hitherto, in the past, heretofore, beforehand, only yesterday, before all, erstwhile, or ever, antecedently, in times past, late, time, erst, theretofore, whilom, priorly, some time ago, ere then, at one time, prehistorically, erewhile, aforetime, in olden times

例文

• However, that involved a mountain of previously unconsidered problems.
  しかしそこには山ほど未踏の問題があった。
• Previously, floods were fate for the region.
  洪水はかつてはこの地方には宿命であった。
• I recognized him immediately since we had previously met.
  以前会った事があったので、すぐに彼がわかった。

previously の言い換えを探すには

previously（以前に）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。