Synonyms of the word 
INCLEMENT → INTEMPERATE - MERCILESS - UNMERCIFUL - UNSPARING
inclement
- adj. Stormy, of rough weather.
- adj. (obsolete) Merciless, unrelenting.
- adj. (archaic) Unmercifully severe in temper or action.
intemperate
- adj. Lacking moderation, temper or control.
- adj. Indulging any appetite or passion to excess, especially the drinking of alcohol.
- v. (obsolete, transitive) To disorder.
merciless
- adj. Showing no mercy; cruel and pitiless.
unmerciful
- adj. not showing mercy.
unsparing
- adj. Without sparing.
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