1. not complying with a rule, standard, or requirement; failing to obey or conform
Usage: formal; often used in legal, regulatory, or technical contexts
2. not flexible or yielding; rigid or stiff
Usage: less common; technical or physical sense

Examples

• The company was fined for being nonpliant with environmental regulations.
• Nonpliant employees who refused to follow safety protocols were disciplined.
• The software flagged the system as nonpliant with industry standards.
• A nonpliant attitude toward authority often leads to conflict.
• The material proved too nonpliant for the flexible design requirements.
• Several countries were cited as nonpliant with the international agreement.