Sentence examples similar to this is rigid from inspiring English sources

This structure is rigid enough to protect the organs inside it, but can expand when a person inhales.

This structure is rigid but flexible, and it allows an efficient transfer of energy from the tail when swimming and an erect body posture when walking.

While this specification is rigid, there is still a significant degree of freedom in annotation, so that a large number of individual situations have to be taken care of semi-automatically.

This hybrid network is rigid (Figure 8b) with glass transition temperature near 70°C (Figure 8a).

This type of insulation is rigid, and is sold in large sheets.

The market is rigid.

It is rigid.

The choreography is rigid.

The school clock is rigid.

We know he is rigid.

POPULATIONS are fluid, but demography is rigid.