sudden change

急変、逆転、激変、豹変

sudden change の類語

reversal, improvement, transition, about face, diversity, change of heart, adaptation, renewal, re creation, difference, reformation, deterioration, alteration, variety, modulation, diversification, switch, worsening, revolution, upheaval, degeneration, reform, betterment, apostasy, defection, realignment, conversion, remaking, flip flop, fitting, variation, accommodation, revival, qualification, adjustment, modification, overthrow, break, turn, diversion, amelioration, mitigation, deviation, shift, discontinuity, turnabout, divergence

例文

• There was a sudden change in her tone.
  急に彼女の声の調子が変った。
• Don't be upset by a sudden change in the weather.
  気候の突然の変化にうろたえるな。

sudden change の言い換えを探すには

sudden change（急変）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。