ingrained

adj

1. Being an element; present in the essence of a thing

   “But ever since the concept of "hamartia" recurred through Aristotle's Poetics, in an attempt to describe man's ingrained iniquity, our impulse has been to identify a telling defect in those brought suddenly and dramatically low.”

2. Fixed, established

verb

1. (form-of, participle, past)simple past and past participle of ingrain