青せい天てんの霹へき靂れきせいてんのへきれきFreq.FrequencyTop 100,000じ字FuriganaMeanings1expression, nouna bolt out of the blue; a sudden and surprising eventidiomatic expression›Idiomatic expression used for an event that is completely unexpected, like a thunderclap from a clear sky. Often used in formal or literary contexts.彼かれの突とつ然ぜんの辞じ任にんは
