Overextending is a term used to describe the act of pushing oneself too far beyond their limits. It's a situation that can lead to physical exhaustion and mental stress. However, there are many synonyms for overextending that may help to convey a similar meaning. Some of these synonyms can be categorized as overworking, overburdening, overreaching, straining, exhausting, and overwhelming. Each of these words can express a level of discomfort or even danger that may be experienced when one goes beyond their limits. It is important to be mindful of these synonyms and to take steps to prevent overextending to maintain good physical and mental health.