鬱うつ勃ぼつ

taru-adjective, adverb taking the 'to' particle

pent-up; burning; irrepressible

Formal literary term describing strong emotions, energy, or ambition that are held back and ready to burst forth. Often used with たる or として.

• 彼かれの胸むねには鬱うつ勃ぼつたる野や心しんが秘ひめられていた。