What does 頑丈 mean?
頑丈 is a Japanese noun meaning “solid, firm, strong” in English. It is written as 頑丈 in kanji, がんじょう in hiragana, and ganjou in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
これは掛けるのにたいそう頑丈ないすだ。
This is a very sturdy chair to sit in.