Sturdy
Firm, Healthy
な adjective
With the height of my husband, he's very firm. Try to push him over. Impossible. He's so tall and sturdy due to his height.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Watch out for the rendaku.
息子はあまり体が丈夫ではなく、よく病気になります。
My son isn't very healthy and he gets sick often.
このイスはとても丈夫なので、力士にもピッタリです。
This chair is very sturdy, so it's perfect even for sumo wrestlers.
毎日しっかりデンタルケアをしてくださいね！丈夫な歯は一生の宝物ですよ。
Please make sure to practice proper dental care every day! Strong teeth are a lifelong treasure.