The practice or character of being finical; excessive concern with minute details or refinements.
From finical (adjective) plus -ism suffix (forming nouns denoting practices, systems, or ideologies). This creates a more abstract term treating finical behavior as a philosophy or practice.
The -ism suffix usually creates big abstract concepts like 'capitalism' or 'socialism,' but English lets us apply it to smaller behaviors too—'finicism' is like jokingly treating someone's pickiness as if it were a whole philosophical movement!
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