Sworn off is a term that describes the act of intentionally giving up something. It can refer to vices such as smoking or alcohol, or even activities that are no longer enjoyed. Synonyms for 'sworn off' include 'quit', 'abandoned', 'forsaken', and 'renounced'. One could also use phrases such as 'done with', 'avoiding', or 'turned away from' to convey the same idea. Other options include 'eschewing', 'disavowing', and 'refraining from'. Ultimately, the choice of synonym depends on the context and tone of the sentence. Regardless of the word used, the act of swearing off something requires a deep level of commitment and determination.