Add soft hyphen (&shy;) in titles (in views) or other method to break words in a language-sensitive way
Our workaround inhouse: We've trained our editors to use Alt + 240 (hold alt key and press 2 4 0 on numeric pad) to manually add soft hyphens in title fields.

Is a bit weird because your editors don't see the hyphen in a text input field, but you can prove its existance by deleting it (backspace after such a hyphen will NOT delete the visible letter on first press)