ineffable

Too great or extreme to be expressed or described in words.

• ineffably/ɪnˈɛfəbli/(adv)难以言表地
• ineffability/ɪnˌɛfəˈbɪlɪti/(n)不可言喻

• ineffable beauty
• ineffable joy
• ineffable sadness
• ineffable mystery

1. 1.Watching the sunrise over the Grand Canyon filled her with ineffable wonder. (beyond words)
2. 2.There was an ineffable quality about his music that moved audiences to tears. (indescribable)

• indescribable/ˌɪndɪˈskraɪbəbəl/— cannot be described
• inexpressible/ˌɪnɪkˈsprɛsɪbəl/— cannot be expressed
• transcendent/trænˈsɛndənt/— surpassing ordinary experience

from Latin "ineffabilis" — in- (not) + effabilis (utterable) — "effari" = to speak out — not speakable