Restrengthening is a term used to describe the process of reinforcing or rebuilding something that has weakened over time. When it comes to finding synonyms for this word, some of the most commonly used phrases include 'strengthening again,' 'reinvigorating,' 'revitalizing,' 'rehabilitating,' 'rebuilding,' 'repairing,' 'rejuvenating,' and 'renovating.' Each of these words represents a different way of describing the process of making something stronger or more robust than it was before. Other words which can be used as synonyms for restrengthening could include 'restoration,' 'renewal,' 'reanimation,' 'resuscitation,' and 'reenergizing.' All these words symbolize the idea of refreshing and rebuilding something that may have been damaged or weakened over time.