失意泰然

しついたいぜん

taru-adjective, to-adverb

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keeping calm and collected at times of disappointment, maintaining a serene state of mind in adversity(archaism, yojijukugo)

失	lose, error, fault, disadvantage, loss
意	idea, mind, heart, taste, thought, desire, care, liking
泰	peaceful, calm, peace, easy, Thailand, extreme, excessive, great
然	sort of thing, so, if so, in that case, well