愕然 がくぜん Meanings たる-adjective, Adverb astonished; shocked; amazed; astounded; aghast (usu. as ~とする) Kanji 愕 surprised; frightened. Read as ガク. 然 -ly. Read as ゼン. Example sentences 彼は娘が万引きをしたと聞いてがくぜんとした。He was shocked to hear that his daughter had shoplifted. Jinuma: Japanese Dictionary · Word lists