1. Previously unknown
   "developments on an unheard-of scale"

See also: unknown

• depleted
• depletion
• depletive
• deplorable
• deplorably
• deplore
• deploy
• deployment
• deplumate
• deplume
• Depokene
• depolarisation
• depolarise
• depolarization
• depolarize
• depoliticise
• depoliticize
• depone
• deponent
• depopulate
• depopulated
• depopulation
• deport
• deportation
• deportee