Last seen in:
- USA Today - Nov 9 2022
- Premier Sunday - King Feature Syndicate - Jul 3 2022
- The Guardian - Quick crossword No 15,950 - Jun 21 2021
- The Sun - Two Speed - Apr 2 2021
- The Sun - Two Speed - Jan 11 2021
- The Telegraph - QUICK CROSSWORD NO: 614 - Mar 1 2020
- The Telegraph - QUICK CROSSWORD NO: 28,863 - Oct 6 2018
- Universal - Feb 3 2015
- Wall Street Journal - Sep 15 2014 - School Breaks
- Eugene Sheffer - King Feature Syndicate - Mar 8 2014
Related Clues:
- Dull or impenetrable
- Covert, private
- Mysterious to all but a chosen few
- Dull, opaque
- Intelligible only to informed people in coteries
- Hard to understand, perhaps profound
- Abstruse, arcane
- Incomprehensible to those with normal understanding
- Intelligible only with special knowledge
- Confidential or mysterious
- Difficult to penetrate or understand
- So Bruce may be dim
- Unknown or unclear
- Kept hidden from others
- Difficult to find