sludgy

[ sluhj-ee ]
/ ˈslʌdʒ i /

adjective, sludg·i·er, sludg·i·est.

of or relating to sludge.
covered, lined with, or containing sludge.

Origin of sludgy

First recorded in 1775–85; sludge + -y1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for sludgy

sludgy

/ (ˈslʌdʒɪ) /

adjective -ier or -iest

consisting of, containing, or like sludge
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