Discontentment is dissatisfaction with the current situation. It can be the push we need to make things better, or the pull we feel that makes things worse. It can be our fuel or our failure.
Discontentment is a powerful motivator. JFK used discontentment to help our country put a man on the moon. Advertising uses discontentment to convince us that what we have is not good enough. Spouses use discontentment to either improve their marriage or end their marriage.