1. (noun) someone who deliberately stirs up trouble

• bad hat
• mischief-maker
• troublemaker
• troubler

1. (noun) someone who deliberately stirs up trouble

• agitator
• fomenter
• badgerer
• heckler
• blusterer
• loudmouth
• cut-up
• hoaxer
• practical joker
• prankster
• tricker
• trickster
• devil
• heller
• hellion
• disturber
• firebrand
• inciter
• instigant
• instigator
• provoker
• hellhound
• rioter

1. (noun) someone who deliberately stirs up trouble

• persona non grata
• unwelcome person