General Antonyms:
* Peacemaker: Someone who promotes calm and avoids conflict.
* Mediator: Someone who helps resolve disputes.
* Reconciler: Someone who brings people together after a disagreement.
* Diplomat: Someone skilled in negotiation and diplomacy.
* Moderate: Someone who holds moderate views and avoids extremes.
Antonyms focusing on specific aspects of "firebrand":
* Pacifist: Someone opposed to war and violence.
* Compromiser: Someone willing to make concessions to reach an agreement.
* Follower: Someone who adheres to established norms and avoids dissent.
* Conformist: Someone who conforms to the prevailing standards and avoids challenging the status quo.
Example:
* Firebrand: "The firebrand politician rallied the crowd with his passionate speech."
* Antonym: "The peacemaker attempted to calm the situation before it escalated into violence."
Ultimately, the best antonym will depend on the specific situation and the intended meaning.