Related Clues:

• Like arctic winds
• Tough to take
• Like an arctic winter
• Not lenient
• Acerb
• Rough, as sandpaper
• Pumice, e.g.
• Unpleasantly coarse
• More than unpleasant
• Like a crow's call
• Smoothing stuff
• Like cold, snowy winters
• Unforgiving
• Rubbing the wrong way?
• Scathing