We have 4 answers for the clue Impenetrable. See the results below.
- None too bright
- None too brainy
- Not too swift
- Packed tight
- Not the brightest bulb on the tree
Last Seen In:
- Netword - January 16, 2015
- New York Times - February 15, 2013
- Netword - August 10, 2012
- Netword - October 28, 2010
- USA Today - October 20, 2008
- Netword - September 30, 2006
- New York Times - October 12, 1998
Found an answer for the clue Impenetrable that we don't have? Then please submit it to us so we can make the clue database even better!