When it comes to describing something as being a certain size, using the same adjective over and over can quickly become monotonous. Therefore, it's useful to have alternatives to the word 'mid-sized' in your vocabulary. Some synonyms for this word include "intermediate," "medium," "average," "moderate," "intermediary," "mean," and "middling." Each of these words conveys the idea of something being between small and large, which is typically what is meant by 'mid-sized.' By using these synonyms, we can add variety and interest to our language while still expressing the same idea.