insupportable

UK: /ˌɪnsəˈpɔː^rtəb^əl/

US: /ˌɪnsəˈpɔrtəbəl/

US: (in′sə pôr′tə bəl, -pōr′-)

WordReference Random House Learner's Dictionary of American English © 2026

in•sup•port•a•ble /ˌɪnsəˈpɔrtəbəl/   adj. 

1. that cannot be endured;
   unbearable:
   insupportable stress.
2. that cannot be justified, as by evidence:
   The paper's account was full of insupportable accusations.

WordReference Random House Unabridged Dictionary of American English © 2026

in•sup•port•a•ble  (in′sə pôr′tə bəl, -pōr′-), adj. 

1. not endurable;
   unbearable;
   insufferable:
   insupportable pain.
2. incapable of support or justification, as by evidence or collected facts:
   an insupportable accusation.

• Late Latin insupportābilis. See in-³, supportable
• 1520–30

in′sup•port′a•ble•ness, in′sup•port′a•bil′i•ty, n. 
in′sup•port′a•bly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

insupportable / ˌɪnsəˈpɔːtəb^əl/ adjective

1. incapable of being endured; intolerable; insufferable
2. incapable of being supported or justified; indefensible

ˌinsupˈportableness noun

ˌinsupˈportably adverb