坚韧
jiān rèn · HSK 7
tough and durable
🪢 坚 firm + 韧 pliable = bends without snapping, like a strong knotted rope
坚 means hard or solid (think a fortress wall) and 韧 means tough yet flexible. Together 坚韧 describes something that endures stress without breaking: firm plus springy equals tenacious.