ingrained
UK: ɪnˈɡreɪnd | US: ɪnˈɡreɪnd
adj. deeply rooted; firmly fixed or established
adj. (of dirt or a stain) deeply embedded and difficult to remove
The word "ingrained" originates from the verb "ingrain," which combines "in-" (meaning "into") and "grain" (referring to the fiber or texture of something, like fabric or wood). Historically, it described dye penetrating deeply into fabric fibers, making the color permanent. Over time, it evolved metaphorically to describe habits, beliefs, or stains that are deeply embedded and resistant to change.
His ingrained fear of heights made climbing the ladder impossible.
The stain was so ingrained that no detergent could remove it.
Cultural traditions are often ingrained from childhood.
She struggled to overcome her ingrained biases.
The dirt on the old rug was deeply ingrained after years of use.