deeply ingrained

Translations
глубоко укоренившийся
The belief in hard work is deeply ingrained in their culture.
Вера в усердный труд глубоко укоренена в их культуре.
Definitions
Firmly established and difficult to change; deeply rooted in a person's beliefs, habits, or culture.
Words
deeply

adverb
глубоко
ingrained

adjective
укоренившийся