1. One who has preceded another in an office.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• predecssor,
• predicesor,
• predecesser,
• predescessors,
• predescesor,
• predcessors,
• predeccessor,
• predacessor,
• predessor,
• predecesors,
• predesessor,
• predecessers,
• precedessor,
• predesessors,
• predocessors,
• predescessor,
• precedecessor,
• predicessors,
• predecessdor,
• predecssors

• predicted,
• predicate,
• predictor,
• protectorate,
• predecease,
• protector,
• predicator,
• protected,
• predigest.

The adjective form of "predecessor" is "predecessorial".

The plural of the "predecessor" can be the "predecessors".

The singular of the "predecessor" can be the "predecessor".