The English language is rich with synonyms for the word "threatener", which refers to someone who makes a declaration of intended harm or damage to others. Some examples of synonyms for "threatener" are intimidator, bully, harasser, aggressor, and antagonist. Other common terms with similar meanings are douser, disruptor, provocateur, or instigator. Each of these words conveys a different nuance or tone of threat, and can be used to describe different types of individuals or situations. When writing or speaking about negative or threatening behavior, choosing the right synonym can add significant power to your message and convey your intent more effectively.