noun, noun or participle which takes 'suru'
driving away melancholy; dispelling gloom
Rare literary noun or suru-verb for actively dispelling melancholy or boredom. Not used in everyday conversation; modern equivalents include 気晴らし or 憂さ晴らし.
彼は散歩を遣悶の手段とした。
He used walking as a means of driving away melancholy.
Compound of 遣 (dispel, send away) and 悶 (anguish, worry). The exact historical derivation is uncertain; it is a Sino-Japanese word (kango) with a literary flavor.