Having strong patience or perseverance; able to endure hardship or put up with things.
彼女は我慢強い人だから、どんな苦労も最後までやり抜く。
She's a very patient person, so she sees any hardship through to the end.
子育てには我慢強さが必要だ。
Raising children requires patience.
我慢強さを身につけることで、仕事での失敗に動じなくなった。
By developing perseverance, I became less disturbed by failures at work.