Full of bad, misguided, or harmful enthusiasm; overly zealous in a counterproductive or damaging way.
From 'cacozeal' with the suffix '-ous'. This adjectival form intensifies the negative connotation of misdirected zeal.
A 'cacozealous' person might be saving money obsessively in ways that damage their health, or pursuing a dream so single-mindedly that they harm themselves—it's zealousness without wisdom.
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