The word Pharisean has its roots in ancient Jewish culture and refers to a strict adherence to religious laws and traditions. Synonyms for Pharisean include self-righteous, holier-than-thou, pompous, and hypocritical. These words suggest a disdain for others who do not adhere to the same strict moral standards and a preoccupation with appearing morally superior. Other related synonyms include puritanical, fanatical, rigid, and legalistic. It's important to note that the term Pharisean comes with a negative connotation and is often used to criticize those who prioritize strict religious observance over compassion and empathy for others.