taru-adjective, adverb taking the 'to' particle
Literary taru-adjective describing a vigorous, surging energy or ambition. Often used in written descriptions of enthusiasm, vitality, or burgeoning force.
His surging ambition could not be stopped by anyone.
The venue was filled with the spirited energy of the young people.
Standard kanji spelling for this literary adjective.
Variant spelling using the repetition mark 々; less common than 勃勃.
The exact derivation is uncertain; the kanji 勃 means 'sudden rise' or 'vigor', and the reduplicated form 勃勃 is a literary Chinese-derived pattern used to intensify the meaning.