adverb taking the 'to' particle, taru-adjective
sighing deeply; with a sigh
Archaic literary word describing a deep, audible sigh, often used with と or in the たる form. Found mainly in classical Chinese-influenced texts.
彼は喟然として嘆息した。
He sighed deeply with a lament.
古典では「喟然」と書いて「きぜん」と読ませる例がある。
In classical texts, 喟然 is sometimes written and read as きぜん.