Impudicity is quite an uncommon word, used to describe indecent or immoral behavior. Its synonyms include shamelessness, indecency, immorality, immodesty, audacity, recklessness, brazenness, forwardness and boldness. Shamelessness implies a lack of modesty or shame, while indecency refers to behavior that is considered inappropriate or offensive. Immorality suggests a disregard for moral principles, while immodesty suggests a lack of modesty in dress or behavior. Audacity and recklessness both imply a willingness to take risks and be bold, while brazenness suggests a lack of concern about how others perceive one's actions. Forwardness suggests a lack of restraint or inhibition in behavior.