Harsh on synonyms

What is another word for Harsh on?

• rough
• harsh to
• hard on
• tough on
• stern to
• severe to
• unfair to
• unjust to
• insensitive to
• nasty to
• cruel to
• unkind to
• unsympathetic to
• brutal to
• heartless to
• merciless to
• criticise
• criticize
• knock
• pick apart