The word "disturber" primarily refers to someone or something that creates disorder or disruption. While it has a negative connotation, there are many synonyms that can make the same point without being as harsh. The word "troublemaker" implies someone who purposely creates problems, while "instigator" suggests someone who starts conflict. "Agitator" can mean someone who stirs up emotions, and "disruptor" refers to something that interrupts normal activities. The word "nuisance" often refers to something that is a minor annoyance, while "irritant" suggests something that is aggravating but not necessarily harmful. Using a synonym for "disturber" allows a writer to convey the same meaning with a different shade of meaning.