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Definition of Backless
1. Adjective. Lacking a back. "A stool is a backless and armless seat" 
Definition of Backless
1. a. Without a back.
Definition of Backless
1. having no back [adj]
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1. Adjective. Lacking a back. "A stool is a backless and armless seat" 
1. a. Without a back.
1. having no back [adj]