taru-adjective, adverb taking the 'to' particle
Describes a state of visible anger or indignation, often used in literary or formal contexts. Typically appears as 憤然として or 憤然と.
He protested indignantly against the unfair treatment.
The company president showed an angry expression at his subordinate's blunder.
立腹 is a noun/suru-verb for anger, more formal than 怒る but less literary than 憤然.
Standard kanji form for this word.
Rarely used kanji form; 忿 is a variant of 憤.
From 憤 (indignation) + 然 (a suffix forming adjectives/adverbs describing a state). The kanji 忿 is a variant of 憤.