‘坦然’ is an adverb meaning 'calmly' or 'without anxiety or embarrassment'—it describes a state of inner composure and openness, especially when facing something potentially difficult or uncomfortable. The first character 坦 (tǎn) means 'flat', 'open', or 'unobstructed', evoking clarity and lack of concealment; the second character 然 (rán) is a classical suffix indicating a state or manner, similar to '-ly' in English. Together, they convey the idea of being mentally 'level' and 'untroubled'—not suppressing emotions, but meeting reality with equanimity.

This word is commonly used in formal writing, speeches, and reflective contexts—such as describing someone’s attitude toward criticism, failure, or personal truths. It often appears after verbs like 面对 (to face), 接受 (to accept), or 承认 (to admit), emphasizing psychological readiness rather than passive indifference. While it shares some ground with words like 平静 (calm), 坦然 carries stronger connotations of moral or emotional honesty and courage.