The term 'tight short' can refer to a form-fitting garment that is designed to be worn close to the skin and is relatively short in length. Synonyms for this term might include 'snug shorts,' 'close-fitting shorts,' or 'form-fitting shorts.' Other possible alternatives could also include 'clingy shorts,' 'body-hugging shorts,' or 'figure-hugging shorts.' Depending on the context in which the term is used, 'tight short' might also be substituted with 'compression shorts,' 'performance shorts,' or 'athletic shorts.' Ultimately, the most appropriate synonym will depend on the specific connotations and meanings that are intended by the speaker or writer who is using the term.