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unconceivable

[uhn-kuh n-see-vuh-buh l]
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adjective Archaic.
  1. inconceivable.

Origin of unconceivable

First recorded in 1605–15; un-1 + conceivable
Related formsun·con·ceiv·a·ble·ness, nounun·con·ceiv·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unconceivable

Historical Examples

  • The responsibility of the individual to his government was unconceivable and inconceivable.

    The Career of Leonard Wood

    Joseph Hamblen Sears

  • But when we make a generall assertion, unlesse it be a true one, the possibility of it is unconceivable.

    Leviathan

    Thomas Hobbes

  • The immortality of the soul is as unconceivable as, in all strictness, is its absolute mortality.

    Tragic Sense Of Life

    Miguel de Unamuno