'deep-seated' definitions:

Definition of 'deep-seated'

From: WordNet
adjective
(used especially of ideas or principles) deeply rooted; firmly fixed or held; "deep-rooted prejudice"; "deep- seated differences of opinion"; "implanted convictions"; "ingrained habits of a lifetime"; "a deeply planted need" [syn: deep-rooted, deep-seated, implanted, ingrained, planted]

Definition of 'deep-seated'

From: GCIDE
  • deep-seated \deep-seated\ adj. same as deep-rooted.
  • Syn: deep-rooted, fundamental, ingrained. [WordNet 1.5 +PJC]