IPA: /ɪnˈɡreɪnd/
KK: /ɪnˈɡreɪnd/
Something that is firmly established and difficult to change, often referring to habits, beliefs, or characteristics that are deeply rooted.
Her ingrained habits made it hard for her to adapt to the new routine.
Ingrained → It is formed from "in-" (meaning in or into) and "grained" (from the root "grain" which comes from Old English "grænu", meaning a small seed or particle). The word "ingrained" means something that is deeply embedded or firmly established within something else, as if it were part of the very grain of the material.
Think of something being 'in' ('in-') the 'grain' of a material, meaning it is deeply embedded or firmly established.