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[yee-stee] /ˈyi sti/
adjective, yeastier, yeastiest.
of, containing, or resembling yeast.
frothy; foamy.
youthful; exuberant; ebullient.
trifling; frivolous.
characterized by agitation, excitement, change, etc.:
the yeasty years immediately following college.
Origin of yeasty
1590-1600; yeast + -y1
Related forms
yeastily, adverb
yeastiness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for yeasty
Contemporary Examples
Historical Examples
  • The cauliflower head changes, or rises to a fine rocky or yeasty head, and ultimately falls down.

  • They are the dough, and they dislike that yeasty stuff of life which comes and works about in them.

    The Island Pharisees John Galsworthy
  • In fact, he was so winded that he hardly knew when he dipped his blade in the yeasty water, or drew it quaveringly toward him.

  • What awakening, what striving with tears, what working of a yeasty conscience!

  • In a little time there was a down-draw in the water behind the embankment—a sucking whirlpool, all yellow and yeasty.

    Soldiers Three Rudyard Kipling
  • We wheeled away to the right, and splashed into yeasty froth.

    The Riddle of the Sands Erskine Childers
  • Up to twenty a boy's years were kind of yeasty and uncertain, and if he was any way self-headed he ought to be left to run.

    The Wrong Twin Harry Leon Wilson
  • The Nadine's rockets had burned away the yeasty soil when she came to ground.

    Planet of Dread Murray Leinster
  • The southern trades were whipping the waves of the distant bay and harbor into yeasty crests.

    The Three Partners Bret Harte
British Dictionary definitions for yeasty


adjective yeastier, yeastiest
of, resembling, or containing yeast
fermenting or causing fermentation
tasting of or like yeast
insubstantial or frivolous
restless, agitated, or unsettled
covered with or containing froth or foam
Derived Forms
yeastily, adverb
yeastiness, 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 yeasty

1590s, from yeast + -y (2).

Online Etymology Dictionary, © 2010 Douglas Harper
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