Misnagdim (, "Opponents"; Sephardi pronunciation: Mitnagdim; singular misnaged/mitnaged) was a religious movement among the Jews of Eastern Europe which resisted the rise of Hasidism in the 18th and 19th centuries. The Misnagdim were particularly concentrated in Lithuania, where Vilnius served as the bastion of the movement, but anti-Hasidic activity was undertaken by the establishment in many locales. The most severe clashes between the factions took place in the latter third of the 18th century; the failure to contain Hasidism led the Misnagdim to develop distinct religious philosophies and communal institutions, which were not merely a perpetuation of the old status quo but often innovative. The most notable results of these efforts, pioneered by Chaim of Volozhin and continued by his disciples, were the modern, independent yeshiva and the Musar movement. Since the late 19th century, tensions with the Hasidim largely subsided, and the heirs of Misnagdim adopted the epithet Litvishe or Litvaks.
The rapid spread of Hasidism in the second half of the 18th century greatly troubled many traditional rabbis; many saw it as heretical. Much of Judaism was still fearful of the messianic movements of the Sabbateans and the Frankists, followers of the messianic claimants Sabbatai Zevi (1626–1676) and Jacob Frank (1726–1791), respectively. Many rabbis suspected Hasidism of an intimate connection with these movements.
Hasidism's founder was Rabbi Israel ben Eliezer (ca.1700–1760), known as the Baal Shem Tov ("master of a good name" usually applied to a saintly Jew who was also a wonder-worker), or simply by the acronym "Besht" (בעש"ט); he taught that man's relationship with God depended on immediate religious experience, in addition to knowledge and observance of the details of the Torah and Talmud.
The characteristically misnagdic approach to Judaism was marked by a concentration on highly intellectual Talmud study; however, it by no means rejected mysticism. The movement's leaders, like the Gaon of Vilna and Chaim of Volozhin, were deeply immersed in kabbalah.