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

• undeterminable
• undeterminate
• undeterminateness
• undetermination
• undetermined
• undeterred
• undeveloped
• undeviating
• undeviatingly
• undevout
• undiagnosed
• undid
• undies
• undifferenced
• undifferentiated
• undigested
• undight
• undighting
• undights
• undignified
• undignifies
• undignify
• undignifying
• undiluted
• undiminishable