1. not existing; not real or present

Examples

• The promised funding turned out to be nonexistent.
• Customer service at that company is practically nonexistent.
• The unicorn is a nonexistent creature from mythology.
• His cooking skills are virtually nonexistent.
• The evidence for their claims appears to be nonexistent.
• Job opportunities in that field are almost nonexistent.
• The difference between the two products is nonexistent.