This puzzle grid contains a 9-letter word meaning "containing air." Can you find it?  All letters in the word must touch (in any direction), and no square may be reused.

The following hints are in black text on a black background. Highlight to view.

Hint regarding word's location: The word begins in the fourth row.

Hint regarding first letter: The word begins with a P.

Answer: Pneumatic.

There is also an 8-letter adjective describing a person who insists on absolute adherence to traditoinal rules.

Answer: Puristic.