INVETERATE

deep-rooted, ingrained, habitual

in a habitual and longstanding manner

SYN - chronically

"This was an inveterate and intractable view of his which it was rather useless to address."

"The sound of the highway had become so inveterate that it was a rather chaotic experience when they left their house and went into the city."

"It was hard for him when the inveterate visits of his uncle stopped - they had always been healing and he had depended on them for years."

"He had developed an inveterate tendency to hate anyone who suggested that knowledge wasn't the key."