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[soo t-ee, soo-tee] /ˈsʊt i, ˈsu ti/
adjective, sootier, sootiest.
covered, blackened, or smirched with soot.
consisting of or resembling soot.
of a black, blackish, or dusky color.
Origin of sooty
1200-50; Middle English; see soot, -y1
Related forms
sootily, adverb
sootiness, noun
unsooty, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for sooty
  • The ants cultivate the fungus, turning it into a sooty mold that acts as living cement, reinforcing the structure of their traps.
  • Smoke from hearth fires has coated the bark walls and sago-leaf ceiling, giving the hut a sooty odor.
  • The sooty particles in the atmosphere heat it further.
  • Some coals are particularly smoky, sooty or otherwise undesirable, while others burn cleaner.
  • And then the sooty yellow slowly turned a lush, rippling green.
  • Industrial centers or sooty cities have plenty of dust too, though for different reasons.
  • sooty terns are easily disturbed by human activity, and repeated disturbance may result in permanent abandonment.
  • White forehead extends further back behind the eye than the sooty tern.
  • The sooty mold is a sign that insect pests have attacked the plant.
British Dictionary definitions for sooty


adjective sootier, sootiest
covered with soot
resembling or consisting of soot
Derived Forms
sootily, adverb
sootiness, noun
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
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Word Origin and History for sooty

mid-13c., from soot + -y (2). Related: Sootily; sootiness.

Online Etymology Dictionary, © 2010 Douglas Harper
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