ignorantismn.
/ˈɪɡnərəntɪz(ə)m/, /ˈɪɡnərn̩tɪz(ə)m/, U.S. /ˈɪɡnərənˌtɪzəm/ Now rare.
Belief in or advocacy of the value or benefits of remaining ignorant; opposition to critical inquiry or enlightenment. Cf. ignorantist n.
ΘΚΠ
the mind > mental capacity > knowledge > want of knowledge, ignorance > intellectual ignorance > [noun] > opposition to enlightenment
obscurantism1824
obscurancy1825
obscurism1841
ignorantism1850
obscuranticism1927
1850 Daily News 6 June 4/2 There was at least some cunning and consistency in this philosophy of ignorantism, when the good old monks preached it.
1939 E. Pound in Aryan Path Oct. 511/2 What is out of date is the ignorantism coming from Calvin, Cromwell, Baxter, and persisting through the mercantilist era.
2009 Newstex Blogs: Reality-based Community (Nexis) 17 June The last eight years of..denial and ignorantism and stasis on climate.
This entry has been updated (OED Third Edition, June 2022).
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n.1850