Related Clues:

• Not in the loop
• Untutored
• Like letters marked 'Return to sender'
• Lacking in or good manners
• Lacking in knowledge or awareness
• Blissfully unaware
• Unaware of soldier returning with negative word to go on and on
• Like much small print
• Like unopened email
• Yet to be studied
• Lacking in good manners
• No rating (anag) — clueless
• Old illiterate discovered in Cajun readership
• Rude or knowing very little
• Old illiterate found in Cajun readership