[fraw-stee, fros-tee]
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adjective, frost·i·er, frost·i·est.
  1. characterized by or producing frost; freezing; very cold: frosty weather.
  2. consisting of or covered with a frost: frosty designs on the windows; an avenue of frosty trees.
  3. lacking warmth of feeling; unfriendly: Their frosty greeting puzzled us.
  4. resembling frost; white or gray: a wedding dress of frosty satin.
  5. of or characteristic of old age: a frosty brow.

Origin of frosty

Middle English word dating back to 1350–1400; see origin at frost, -y1
Related formsfrost·i·ly, adverbfrost·i·ness, nounfrost·less, adjectiveun·frost·y, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for frosty


adjective frostier or frostiest
  1. characterized by frosta frosty night
  2. covered by or decorated with frost
  3. lacking warmth or enthusiasmthe new plan had a frosty reception
  4. like frost in appearance or colour; hoary
Derived Formsfrostily, adverbfrostiness, 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

Word Origin and History for frosty

Old English forstig, fyrstig (cf. Dutch vorstig, German frostig); see frost (n.) + -y (2). Figurative use from late 14c. Related: Frostily; frostiness.

Online Etymology Dictionary, © 2010 Douglas Harper