頑健がんけん I-adj Noun English jmdict 1 adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi) robust;fit and healthy;strong;sturdy 彼はとても頑健だ。 He is strong as a horse.
頑健無比がんけんむひ Noun I-adj English jmdict 1 noun (common) (futsuumeishi) adjectival nouns or quasi-adjectives (keiyodoshi) being of very robust health