"Full-bore" refers to something that is done with maximum effort, intensity, or speed. To express this concept differently, one could use synonyms such as "full throttle," "all-out," "wholehearted," "non-stop," "unrestrained," "uninhibitedly," or "with all one's might." Other options might include "intense," "fierce," "powerful," "vigorous," "energetic," "dynamic," "uncompromising," or "unrelenting." These synonyms convey the sense of a forceful and committed approach to a task or objective. When employing a synonym for "full-bore," it can be helpful to consider the specific connotations and nuances that distinguish each word, in order to choose the most appropriate and effective term for the intended context.