堅牢堅固

Reading

Kana: けんろうけんご

Romaji: kenroukengo

Definition

noun

adj-na

1

firm and solid; stout and durable

Note: yojijukugo

Kanji

堅

Readings: ケン、 かた.い、 -がた.い

Meanings: strict, hard, solid, tough, tight, reliable

牢

Readings: ロウ、 かた.い、 ひとや

Meanings: prison, jail, hardness

固

Readings: コ、 かた.める、 かた.まる、 かた.まり、 かた.い

Meanings: harden, set, clot, curdle