nonentity /non-enˈti-ti/

1. A person or thing of no importance (derogatory)
2. The state of not being
3. A thing which does not exist

• double-parked
• double-parking
• double-parks
• double play
• double plays
• double pneumonia
• double procession
• double-quick
• doubler
• double reed
• double reeds
• double refraction
• double rollover
• doublers
• doubles
• double salt
• double salts
• double saucepan
• double saucepans
• double-shade
• double-shaded
• double-shades
• double-shading
• double-sharp
• double-sharps