incontestable

[ in-kuh n-tes-tuh-buh l ]
/ ˌɪn kənˈtɛs tə bəl /

adjective

incapable of being contested; not open to dispute; incontrovertible: incontestable proof.

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Origin of incontestable

First recorded in 1665–75; in-3 + contestable

OTHER WORDS FROM incontestable

in·con·test·a·bil·i·ty, in·con·test·a·ble·ness, nounin·con·test·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for incontestability

incontestable
/ (ˌɪnkənˈtɛstəbəl) /

adjective

incapable of being contested or disputed

Derived forms of incontestable

incontestability or incontestableness, nounincontestably, 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