ˈlefˌtizəm noun
( -s )
Usage: sometimes capitalized
1. : the principles and views of the Left ; also : the movement embodying these principles
the real danger is not liberalism or leftism — New Republic
leftism , British style, played an important part in the freedom movement — Christopher Rand
2. : advocacy of or adherence to the doctrines of the Left
a swing from the right of the Popular Front to a leftism — James Burnham
charges and taints of leftism — Lawrence Stessin