"Bomb thrower" is a colloquial term used to describe someone who often causes controversy or creates chaos through their actions or words. It is not an appropriate term to be used in a professional or formal setting. There are several synonyms that can be used instead, such as troublemaker, agitator, provocateur, instigator, rabble-rouser, or disruptor. These terms are more neutral and can be used to describe individuals who intentionally cause disruption or unrest. It is important to use these words with caution and to ensure that they are used in an appropriate context, so as to avoid any potential misunderstandings or offence.