vanitarianismn.
The pursuit of vanities.Apparently an isolated use.
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the world > action or operation > harm or detriment > disadvantage > uselessness > uselessness, vanity, or futility > [noun] > policy or pursuit of
vanitarianism1849
futilitarianism1921
1849 W. M. Thackeray Lett. 81 After wasting a deal of opportunities and time and desires in vanitarianism.
This entry has not yet been fully updated (first published 1916; most recently modified version published online September 2019).
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n.1849