"Payless" is not a word in standard English, which is why you can't find it in dictionaries. It may have been invented (possibly multiple times) for advertising or marketing purposes, and in those contexts it probably means "free" or "low price".
What is the definition of Payless?
Adjective. payless (not comparable) unpaid quotations ▼
Is Playless a word?
adjective. Without play; lacking plays.
