蹶けつ然ぜん

adverb taking the 'to' particle, taru-adjective

springing up; with alacrity; resolutely

Formal literary term describing a sudden, energetic movement or a decisive, spirited action. Often used with と (to) as an adverb.

• 彼かれは席せきを蹶けつ然ぜんと立たった。