* Formal: The company's rigid adherence to the old rules prevented them from adapting to the changing market.
* Descriptive: The sculpture was made of rigid metal, its sharp edges catching the light.
* Figurative: Her rigid posture conveyed her anxiety, making her seem like a tightly wound spring.
* Negative: His rigid opinions made it impossible to have a productive conversation.
* Positive: The bridge's rigid structure made it strong enough to withstand the earthquake.
As you can see, "rigid" can have both positive and negative connotations depending on the context. It can refer to something that is inflexible, unyielding, or strict, but also to something that is strong and durable.