1. Unaware because of a lack of relevant information or knowledge
   "an unknowledgeable assistant"
   - ignorant, unknowing, unwitting

See also: uninformed

• character-at-a-time printer
• characterisation
• characterise
• characterisic function
• characteristic
• characteristic curve
• characteristic root of a square matrix
• characteristically
• characterization
• characterize
• characterless
• charade
• charades
• Charadrii
• Charadriidae
• Charadriiformes
• Charadrius
• Charadrius melodus
• Charadrius morinellus
• Charadrius vociferus
• Charales
• charas
• charbroil
• charcoal
• charcoal burner