Definition of "incommunicable" [in•com•mu•ni•ca•ble]

• Impossible to be transmitted; not communicable: an incommunicable disease. (adjective)
• Incommunicative: an executive who was maddeningly incommunicable. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It was given to her to know that which an artist of living memory has called the incommunicable thrill of things ...."
• "There would be, for instance, no less than eight or nine of those great slowly moving words, like 'incommunicable' or 'importunate' written down, not so much to express an inevitable idea as to fill an inevitable space; and thus the poems seem to lose their pungency by the slow absorption of painfully sought agglutinations of syllables, with a stately music of their own, of course, but garnered rather than engendered."
• "Deep religious experience is always indescribable and usually incommunicable."