s. incapable of or resistant to bending
s. incapable of compromise or flexibility
a. designating an airship or dirigible having a form maintained by a stiff unyielding frame or structure
a. 坚硬的, 刚性的, 严格的, 精密的, 刻板的
1. The rules of the game are too rigid for beginners.
这个游戏的规则对初学者来说太死板了。
2. She has a rigid schedule that she follows every day.
她有一个严格的日程安排，每天都遵循。
3. The box is made of rigid plastic, making it very durable.
这个盒子是用坚硬的塑料制成的，非常耐用。