堅牢堅固
- noun (common) (futsuumeishi)
- adjectival nouns or quasi-adjectives (keiyodoshi)
堅牢堅固
Noun
I-adj
1
noun (common) (futsuumeishi)adjectival nouns or quasi-adjectives (keiyodoshi)
yojijukugo
firm and solid;stout and durable