Deeply established, firmly fixed, or thoroughly dyed into something; deeply rooted in a person's character or in a system.
Past participle of 'engrain.' Can also be an alternative spelling of 'ingrained,' carrying the same meaning of being deeply embedded or saturated.
Engrained prejudices and engrained crafts techniques both use the same logic—they're woven so deep into the fabric (literally or figuratively) that they're almost impossible to remove without damaging the whole thing.
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