1. the quality or state of being stiff, inflexible, or unable to bend
Usage: plural of rigidity
2. strict adherence to rules, principles, or methods without allowance for change
Usage: plural of rigidity

Examples

• The metal’s rigidities made it unsuitable for the flexible joint.
• Age-related rigidities in his muscles made movement difficult.
• The company’s rigidities in policy prevented quick adaptation to market changes.
• Teachers complained about the curriculum’s rigidities that stifled creativity.
• The bridge design had to account for the material’s natural rigidities.
• Social rigidities often prevent progress in traditional communities.