Suspension of hostilities refers to a temporary ceasefire or truce in warfare. The antonyms for this term would be conflict, hostility, aggression, violence, war, and fighting. These words indicate a state of active conflict and lack of peace. If we were to look at the opposite of suspension of hostilities from a different perspective, it could be expressed as a peace treaty, an agreement to end a dispute, or a reconciliation. Therefore, the opposition of suspension of hostilities would be a return to active hostilities or an absence of efforts to restore peace. Ultimately, it is crucial to find ways to maintain peace and prevent conflict wherever possible.