resolutely; with firm determination
Describes a firm, unwavering attitude or action, often in the face of difficulty or opposition. Conveys a dignified, unyielding stance.
彼は困難に直面しても毅然として立ち向かった。
He faced the difficulties resolutely.
社長は不正に対して毅然とした態度を取った。
The president took a firm stance against the misconduct.
From the adjective 毅然 (きぜん, 'resolute, firm') combined with the adverbial particle として. The kanji 毅 means 'strong' or 'resolute', and 然 is a suffix forming adjectives/adverbs.