Pre-arranged is a widely used term that refers to something that has been planned or organized beforehand. However, there are many other words that can be used to convey the same meaning. Some common synonyms for pre-arranged include predetermined, pre-planned, premeditated, preconceived, and preordained. These words all refer to something that has been decided upon or arranged before it happens. Other synonyms for pre-arranged include scheduled, coordinated, arranged, and organized. Whether you are organizing an event or planning a meeting, the use of these synonyms can help you better convey your message and add variety to your vocabulary.