na-adjective, taru-adjective, adverb taking the 'to' particle, noun
disinterested; unselfish; indifferent; detached
Describes a calm, unselfish, and detached attitude, free from greed or worldly desires. Often used in literary or formal contexts. Can be used as a noun, na-adjective, or taru-adjective/adverb with と.
彼は名利に恬淡としている。
He is indifferent to fame and fortune.
恬淡な性格の人は、争いを好まない。
A person with a disinterested nature does not like conflict.
The word is composed of 恬 (calm, quiet) and 淡 (thin, indifferent). The exact historical derivation is uncertain, but the combination suggests a state of serene detachment.