1. not valid; lacking legal force, effectiveness, or acceptability
Usage: formal; technical

Examples

• The contract was declared nonvalid due to missing signatures.
• His nonvalid passport prevented him from traveling abroad.
• The court ruled the agreement nonvalid and unenforceable.
• She submitted a nonvalid form that lacked required information.
• The expired license made his driving privileges nonvalid.
• The researcher’s nonvalid methodology undermined the study’s conclusions.