leftist

UK: /ˈlɛftɪst/ US: /ˈlɛftɪst/ ,(lef′tist)

WordReference Random House Learner's Dictionary of American English © 2026

left•ist /ˈlɛftɪst/   n. 

[countable* sometimes: Leftist]
1. Government a member of the political Left;
   liberal or radical.

adj. 

2. Government of, relating to, or called for by the political Left.

left•ism, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026

left•ist  (lef′tist), n. 

1. Government a member of the political Left or a person sympathetic to its views.

adj. 

2. Government of, pertaining to, characteristic of, or advocated by the political Left.

Also, Left′ist. 

• left¹ + -ist 1920–25

left′ism, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

leftist / ˈlɛftɪst/ adjective

1. of, tending towards, or relating to the political left or its principles

noun

1. a person who supports or belongs to the political left

ˈleftism noun