Moralizers are individuals who typically impose their moral values and beliefs on others. These individuals can be very judgmental and may use their moral beliefs to criticize or shame others. Some possible synonyms for the word moralizer include preacher, sermonizer, moralist, pontificator, and dogmatist. Other related terms that might be used to describe these types of individuals include sermonizing, preaching, moralizing, proselytizing, and sanctimonious. It's important to note that while these terms are often used to describe people who are overly preachy or judgmental, there are times when it's appropriate to share one's moral beliefs in a respectful and non-judgmental way.