1. not able to be postponed or delayed; requiring immediate attention or action
Usage: formal; often used in business and administrative contexts

Examples

• The emergency repairs were nondeferrable and had to be completed immediately.
• All nondeferrable expenses must be paid before the end of the fiscal year.
• The board classified the safety upgrades as nondeferrable maintenance.
• Due to the deadline, this project is nondeferrable and cannot be pushed to next quarter.
• The hospital identified several nondeferrable equipment purchases.
• Management determined that staff training was nondeferrable given the new regulations.