unspeakable

[ uhn-spee-kuh-buhl ]
/ ʌnˈspi kə bəl /

adjective

not speakable; that may not be spoken.
exceeding the power of speech; unutterable; inexpressible; indescribable.
inexpressibly bad or objectionable.

Origin of unspeakable

1350–1400; Middle English unspekeabill. See un-1, speakable

OTHER WORDS FROM unspeakable

un·speak·a·ble·ness, noun un·speak·a·bly, adverb

Example sentences from the Web for unspeakable

British Dictionary definitions for unspeakable

unspeakable
/ (ʌnˈspiːkəbəl) /

adjective

incapable of expression in words unspeakable ecstasy
indescribably bad or evil
not to be uttered unspeakable thoughts

Derived forms of unspeakable

unspeakableness, noun unspeakably, adverb