The commander was a man of rigid protocol.

Presiding over the meeting was General William Clark and his advisors, a group of prominent traders who were all knowledgeable in the rigid protocol of Indian etiquette.

Still, neither Mr. Young nor Mr. Jarmusch was fully prepared to accept Cannes's rigid protocol.

They have learned not only the language but its rigid and complex protocol.

The Spanish court, with its rigid protocols, religious austerity and fanaticism, planted the seeds of the Counter-Reformation in the rulers of Austro-Hungary.

This approach guides the witness over a rigid protocol.

Her body didn't fit the sculptor's rigid protocols of discarded parts and obsolete materials; that would have been inhumane.

In the case of landfills, advanced countries typically have rigid protocols for daily cover with topsoil, where underdeveloped countries customarily rely upon less stringent protocols.

The hotline is operated in accordance with a rigid protocol developed in collaboration with national education and law enforcement authorities.

To bring an end to the Diversity Crisis, off-world forces want Pandora's guardians to abandon the rigid protocols that have kept them and their planet healthy for millenniums.