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See more synonyms for brackish on Thesaurus.com
  1. having a slightly salty or briny flavor.
  2. distasteful; unpleasant.
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Origin of brackish

1530–40; < Dutch brak salty + -ish1
Related formsbrack·ish·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for brackish

briny, saline, salty, salted, saltish

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British Dictionary definitions for brackish


  1. (of water) slightly briny or salty
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Derived Formsbrackishness, noun

Word Origin for brackish

C16: from Middle Dutch brac salty; see -ish
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 brackish


1530s, from Scottish brack "salty" (see brack) + -ish. Related: Brackishness.

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Online Etymology Dictionary, © 2010 Douglas Harper

brackish in Science


  1. Containing a mixture of seawater and fresh water. Brackish water is somewhat salty.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.