counterradicalism en · NOUN
Etymology
From counter- + radicalism.
Meanings
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(uncountable) Counterradical policies generally.
By the time he had participated in the Belgian relief, by the time he had observed the excesses of counterradicalism during the Red Scare […]
1993, James D. Calder, The Origins and Development of Federal Crime Control Policy:Apparently Hoover survived the purge both because of his expertise in counterradicalism and by convincing Palmer, through Garvan, that he was not an "O'Briari man."
1992, Curt Gentry, J. Edgar Hoover: The Man and the Secrets, page 76: