Opague, not clear. When something is opaque, it's not easily understood. The word opaque goes back to Middle English and means "shaded". Artists who use Gouache use it for it's opaque nature. My experience with gouache is limited to my color theory classes. Now, I'm thinking about how I can make statements in my art, juxtaposing opaque qualities with transparent ones.
I'm also thinking about other words that start with the letter O. "O" for Oprah! "O" for Oh My God, life is good. I made quite an impression at Utrecht. They are gifting me with a plein air umbrella! "O" for outrageous!!!