根深柢固

gēnshēndǐgù

deep-rooted; ineradicable; ingrained; inveterate; radicated

Wiktionary

Entry Composition

1 根 gēn
  1. root
  2. basis
  3. classifier for long slender objects, e.g. cigarettes, guitar strings
  4. radical (chemistry)

classifier: 條
=2 深 shēn old variant of 深 shēn
=2 深 shēn deep (lit. and fig.)
3 柢 dǐ
  1. foundation
  2. root
4 固 gù
  1. hard
  2. strong
  3. solid
  4. sure
  5. assuredly
  6. undoubtedly
  7. of course
  8. indeed
  9. admittedly