na-adjective, noun
faraway; remote; distant in time or space
Literary, somewhat poetic word for great distance or remoteness, often evoking a sense of vastness or antiquity. Rare in everyday speech; more common in written descriptions or elevated prose.
悠遠の昔から伝わる伝説。
A legend handed down from the distant past.
悠遠な宇宙の彼方に思いを馳せる。
I let my thoughts wander to the far reaches of the universe.