Hasidim/Chasidim (Hebrew: חסידים‎) is the plural of Hasid (חסיד), meaning "pious". The honorific "Hasid" was frequently used as a term of exceptional respect in the Talmudic and early medieval periods. In classic Rabbinic literature it differs from "Tzadik"-"righteous", by instead denoting one who goes beyond the legal requirements of ritual and ethical Jewish observance in daily life. The literal meaning of "Hasid" derives from Chesed-"kindness", the outward expression of love of God and other people. This spiritual devotion motivates pious conduct beyond everyday limits. The devotional nature of its description lent itself to a few Jewish movements in history being known as "Hasidim". Two of these derived from the Jewish mystical tradition, as it could tend towards piety over legalism.

As a personal honorific, both "Hasid" and "Tzadik" could be applied independently to a same individual with both different qualities. The 18th-century Vilna Gaon, for instance, while the head of Rabbinic opposition to the new Jewish mystical movement that itself became known as "Hasidism", was renowned for his righteous life. His scholarship became popularly honored with the formal title of "Genius", while amongst the Hasidic movement's leadership, despite his fierce opposition, he was respectfully referred to as "The Gaon, the Hasid from Vilna".

In the aggregate, it may refer to members of any of the following Jewish movements:

  • Hasidic Judaism, the popular following, mystical revival movement of 18th century Eastern Europe until today
  • Hasideans, pietists or "Jewish Puritans" of the Maccabean period, around the 2nd century BCE
  • Chassidei Ashkenaz, ascetic German mystical-ethical pietists of the 12th and 13th centuries

Other articles related to "hasidim":

Chabad (Hasidic Dynasty) - Customs
... For example, they do not wear the fur hats common among other hasidim ... Almost all American Chabad Hasidim pronounce Hebrew according to the Lithuanian dialect ... However, many native Israeli Chabad Hasidim pronounce Hebrew according to the Modern Israeli Hebrew dialect ...
Anarchism And Orthodox Judaism - Historical and Legendary Communities - Hasidim
... Kalman Shapira of Piasetzno had organized a mystical circle of Hasidim, focused on spiritual development and meditation ...
Menachem Shlomo Bornsztain - Becoming Rebbe
... Menachem Shlomo was asked by the Sochatchover Hasidim to become their Rebbe ... Bornsztain was also asked by the Radomsker Hasidim who had survived the Holocaust to become their Rebbe as well ... He gave himself over completely to his Hasidim, his students, and the community at large ...
Shmuel Bornsztain (I) - World War I
... acted as a guide and advisor to his own Hasidim as well as Hasidim of other dynasties and non-Hasidim seeking encouragement and support ...