The most common and most likely answer to this crossword clue is the 8 letter word POSTCARD which also is the latest solution we found used in New York Times in 2013.
Mail that isn't opened crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| POSTCARD | 100 % | 8 | 
Words with a meaning similar to the clue: Mail that isn't opened
These words may or may not be a possible solution to this crosswords clue.- door
 - addressee
 - coif
 - communication
 - correspondence course
 - cover
 - entry
 - envelope
 - flat
 - forward
 - frank
 - general delivery
 
Crossword Answer definitions
POSTCARD noun- A rectangular piece of thick paper or thin cardboard intended to be written on and mailed without an envelope. In the case of a picture postcard one side carries a picture or photograph.
 
- To send a postcard to.
 - To send by means of a postcard.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution