A real aesthetic term for beauty too deep to state. Almost nobody outside Japan uses it.

What a Japanese person actually thinks
Impressive. This is specialist vocabulary; a Japanese person seeing it on a foreigner will assume you studied something. Genuinely elegant.

Meaning

Literally: faint/secluded + profound
Actually: The profound, mysterious beauty that can be suggested but not said — a central term in Noh theatre and medieval poetics.

Scores

Naturalness●●●●●

A real, established term — though a literary one that not every Japanese person could define precisely.

Coolness●●●●●

Two dense, unusual characters, and a meaning that rewards being asked about. Close to ideal for what a kanji tattoo is supposed to do.

Watch out

lowIt's specialist enough that some readers will know the word without being able to explain it. That's arguably the point.

On skin

幽玄

Orientation: vertical

Mincho, vertical. This is a literary term — a literary typeface suits it.