"Definition 2 says "Hard to endure", that looks like it re-inforces what I said" Actually, I thought you meant defn one. one could have a challenging job that one likes, and which is hence not difficult to endure (or tolerate). Which takes us back to what I said. Hence my assertion: I am talking about defn 2, and you are talking about defn 1.
-akhilesh PS I liked CLockwork Orange. It;s interesting, though very very bleeding heart liberal.