Apparently, as “his frustration rises and his influence ebbs,” our president has been using the word “unacceptable” much more often. The article says:
In speeches, statements and news conferences this year, the president has repeatedly declared a range of problems “unacceptable,” including rising health costs, immigrants who live outside the law, North Korea’s claimed nuclear test, genocide in Sudan and Iran’s nuclear ambitions… Having a president call something “unacceptable” is not the same as having him order U.S. troops into action. But foreign policy experts say the word is one of the strongest any leader can deploy, since it both broadcasts a national position and conveys an implicit threat to take action if his warnings are disregarded.
The article avoids (explicitly) saying:
You use that word a great deal. I do not think it means what you think it means.