• synonyms


[in-di-tur-muh-nuh-buh l]
See more synonyms for indeterminable on Thesaurus.com
  1. not determinable; incapable of being ascertained.
  2. incapable of being decided or settled.
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Origin of indeterminable

From the Late Latin word indēterminābilis, dating back to 1480–90. See in-3, determinable
Related formsin·de·ter·mi·na·ble·ness, nounin·de·ter·mi·na·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for indeterminable

Historical Examples

  • The 6th and possible 7th columns of the lower part are indeterminable.

    Commentary Upon the Maya-Tzental Perez Codex

    William E. Gates

  • Their emotions are mostly expressed by indeterminable, leery grins.

  • In other words, with an indeterminable future it has had a determinable past.

  • Dark it appeared, but the precise tint was indeterminable, as was that of her skin, which looked neither brown nor white.

    Green Mansions

    W. H. Hudson

  • Langley seemed prepared for anything, even for an indeterminable number of universes interfused--physics stark mad in metaphysics.

British Dictionary definitions for indeterminable


  1. incapable of being ascertained
  2. incapable of being settled
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Derived Formsindeterminableness, nounindeterminably, 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

Word Origin and History for indeterminable


late 15c., from Late Latin indeterminabilis "that cannot be defined," from in- "not" (see in- (1)) + determinabilis, from determinare (see determine).

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Online Etymology Dictionary, © 2010 Douglas Harper