Leninist adjective & noun. ['lɛnɪnɪst] E20.
[formed as LENINISM + -IST.]
A. adjective. Of, pertaining to, or characteristic of Lenin, his followers, or his doctrines. E20.
b. noun. A follower or adherent of Lenin or his doctrines. E20.

Comb.:
Leninist-Marxist adjective = Marxist-Leninist s.v. MARXIST noun¹ & adjective¹; Leninist-Stalinist adjective of, pertaining to, or characteristic of Leninism-Stalinism.
Also
■ Leninite adjective & noun E20.

[TahlilGaran] English Dictionary ▲