泰然自若 たいぜんじじゃく Meanings たる-adjective, Adverb having presence of mind; self-possessed; imperturbable; calm and self-possessed Kanji 泰 tranquil. Read as タイ. 然 -ly. Read as ゼン. 自 self 若 young. Read as ジャク. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists