嘆息 たんそく
tansoku

Noun
Suru Verb

1. sigh (of grief, disappointment, etc.); grieving; lamenting; deploring

Intransitive
深々 ふかぶか嘆息 たんそくして、廊下 ろうか かう。
fukabukato tansoku shite rōkae mukau.
He sighed deeply and headed to the corridor.
Other forms: