The practice, habits, or characteristics of dilettantes; superficial or casual engagement in artistic or intellectual pursuits without serious commitment.
From dilettante plus -ism suffix. This is a variant of dilettanteism, using the same -ism suffix to create an abstract noun describing the behavior or philosophy.
Dilettantism became a whole critique of the upper class—the idea that having money meant you could 'play' at being an artist or scholar without actually mastering anything!
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