頑固がんこ Common I-adj Noun English jmdict 1 adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi) stubborn;obstinate;pigheaded 彼は性質が頑固だ。 He is obstinate in disposition.
頑固親父がんこおやじ Noun English jmdict 1 noun (common) (futsuumeishi) stubborn (obstinate) father;pig-headed old man