indissoluble

[in-di-sol-yuh-buh l]
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adjective
  1. not dissoluble; incapable of being dissolved, decomposed, undone, or destroyed.
  2. firm or stable.
  3. perpetually binding or obligatory.

Origin of indissoluble

From the Latin word indissolūbilis, dating back to 1535–45. See in-3, dissoluble
Related formsin·dis·sol·u·bil·i·ty, in·dis·sol·u·ble·ness, nounin·dis·sol·u·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for indissoluble

binding, enduring, firm, imperishable, lasting

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British Dictionary definitions for indissoluble

indissoluble

adjective
  1. incapable of being dissolved or broken; permanent
Derived Formsindissolubility or indissolubleness, nounindissolubly, 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 indissoluble
adj.

mid-15c. (implied in indissolubly), from Latin indissolubilis "that cannot be dissolved," from in- "not, opposite of" (see in- (1)) + dissolubilis, from dis- + solubilis (see soluble).

Online Etymology Dictionary, © 2010 Douglas Harper