The word "whorishness" is a derogatory term used to describe a promiscuous or sexually immoral behavior in a person. Some synonyms that can be used to describe such behavior can include words such as licentiousness, wantonness, lewdness, immorality, or unchastity. Other words that can be used include promiscuity, debauchery, immodesty, indecency, lasciviousness, or seductiveness. It is important to note that the use of such words can be offensive and disrespectful, and it is always advisable to use respectful language while addressing sensitive topics such as sexuality and promiscuity.