le dénouement

This word literally means the untangling, unknotting. After a climax of a story, some of the loose ends need to be tied up, thorny situations straightened out, etc. This is the denouement of the story.

Scoliosis, if diagnosed at a curve more than 45 degrees (even lesser curves, can cause aches and pains in the lower back and knotting. Going to a chiropractor can help ease the pains and help with unknotting the muscles in your back.

Some word endings for "problem" are problematic, problematize, and problematical.

In Yiddish, you can say "keyn problem."

The 'problem' of 'this problem' is not understood.