There are several synonyms for the word "Chassidic," which refers to a form of Jewish mysticism that originated in the 18th century. Some common synonyms for Chassidic include Hassidic, Hasidic, and Chasidic. These words all convey the same meaning and are used interchangeably to describe the religious sect of Judaism that emphasizes ecstatic worship, joyful mysticism, and personal spiritual growth. Other related terms that are sometimes used in conjunction with Chassidic include Orthodox Judaism, Sephardic Judaism, and Kabbalah. While these terms may have slightly different connotations, they are all part of the rich tapestry of Jewish spirituality and tradition.