Relating to anticommunism in a thorough or absolute manner; strongly opposed to communism.
From 'anticommunistic' plus '-al' adding redundant emphasis. This is an archaic or rare intensifying construction.
Adding '-al' to words already ending in '-ic' is old-fashioned and sounds overly formal—'anticommunistical' is the kind of word you'd see in 1950s political speeches trying to sound authoritative and unquestionable.
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