Last seen in:
- New York Times - Oct 11 2017
- USA Today - Jun 21 2014
- L.A. Times Daily - Apr 25 2014
- New York Times - Apr 23 2012
- L.A. Times Sunday - May 29 2011
- Wall Street Journal - Oct 1 2010 - Small Caps
- Premier Sunday - King Feature Syndicate - Dec 28 2008
- New York Times - Oct 29 2008
- Universal - Jul 27 2007
- Newsday.com - Feb 18 2006
Related Clues:
- Like liquid nitrogen
- Like oxygen
- Unable to react, as helium
- Like 103-Down
- Chemically nonreactive
- Phlegmatic
- Couchbound, perhaps
- Utterly lethargic
- Chemically quiet
- Hard to get a reaction out of
- Unable to react chemically
- Hard to combine, chemically
- Like carbon monoxide
- Nonreactive, as some gases
- Like dead weight