The word "sluttiness" may carry a negative connotation and is often used to describe someone's promiscuity. To avoid this derogatory term, there are many synonyms that can be used instead. Some alternatives include "promiscuity," "looseness," "licentiousness," "lewdness," and "immorality." These words can be used to describe someone who is sexually active without passing judgment or shame on them. Other synonyms that could be used in different contexts may include "vulgarity," "indecency," or "lecherousness." It's essential to choose a word that accurately conveys the intended meaning without resorting to derogatory language.