without further delay

一日も早く

without further delay の類語

quickly, immediately, directly, in no time, at once, right away, instantly, swiftly, without delay, pronto, summarily, forthwith, on the spot, promptly, pdq, speedily, straightaway, expeditiously, apace

without further delay の反意語

slowly

without further delay の言い換えを探すには

without further delay（一日も早く）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。