1. demanding immediate attention; urgent and pressing
Usage: formal
2. loud and insistent; clamorous
Usage: formal; literary

Examples

• The clamant need for healthcare reform could no longer be ignored.
• There was a clamant demand for action from the protesters.
• The clamant voices of the crowd filled the square.
• Emergency repairs became clamant after the storm damage.
• The report highlighted the clamant issues facing the community.
• Her clamant appeals for help finally reached the authorities.