The term DISAPPROVING SYLLABLE can be broken down into two crossword solutions: TSK and TUT. TSK is an interjection used to express disapproval, often accompanied by a shaking of the head. It is commonly used in English, Spanish, and Portuguese. TUT is another interjection used to express disapproval, usually accompanied by a facial expression of disapproval. It is commonly used in British English. Both of these interjections are used to express disapproval without having to use words.