プログレッシブ和英中辞典(第4版)の解説
いきなり
❶〔突然〕suddenly; all of a sudden
いきなり部屋から飛び出した
He dashed out of the room suddenly.
相手はいきなり彼に突っ掛かってきた
His opponent made a sudden lunge at him.
彼はいきなり立ち上がった
He sprang to his feet./He stood up abruptly.
いきなり彼に尋ねられてびっくりした
His abrupt question took me by surprise.
❷〔知らせなしに〕without (any) warning
いきなり解雇を言い渡された
I was discharged without notice.