The word "overtires" refers to the state of being excessively tired or worn out. There are several synonyms for overtires that are commonly used, including exhausted, fatigued, worn out, drained, depleted, and spent. These words all express a feeling of extreme fatigue that can occur due to physical or mental exertion. Other possible synonyms for overtires include worn, jaded, frazzled, burned out, pooped, and knackered. Using synonyms in your writing can help to add variety and depth to your language, and make your work more engaging and expressive. Overall, overtires and its synonyms can help to describe the feeling of being beyond tired and in need of rest and rejuvenation.