[ in-suh-pawr-tuh-buhl, -pohr- ]
See synonyms for insupportable on
  1. not endurable; unbearable; insufferable: insupportable pain.

  2. incapable of support or justification, as by evidence or collected facts: an insupportable accusation.

Origin of insupportable

From the Late Latin word insupportābilis, dating back to 1520–30. See in-3, supportable

Other words from insupportable

  • in·sup·port·a·ble·ness, in·sup·port·a·bil·i·ty, noun
  • in·sup·port·a·bly, adverb

Words Nearby insupportable Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use insupportable in a sentence

  • The light wounds him, glory is a sight insupportable to him, and makes him want to veil his eyes with his bat-like wings.

    Charles Baudelaire, His Life | Thophile Gautier
  • I was glad when the darkness fell again, for the sight of his bowed head and set features was insupportable to me.

    The Circular Study | Anna Katharine Green
  • At first this melancholy task was insupportable, but I persevered; and in a short time became reconciled to it.

British Dictionary definitions for insupportable


/ (ˌɪnsəˈpɔːtəbəl) /

  1. incapable of being endured; intolerable; insufferable

  2. incapable of being supported or justified; indefensible

Derived forms of insupportable

  • insupportableness, noun
  • insupportably, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012