The term 'knotted up' can be described by four crossword solutions: EVEN, GNARLED, TENSE, and TIED. EVEN means having an equal number of parts or being balanced, while GNARLED implies something twisted or distorted. TENSE is used to describe a feeling of anxiety or stress, and TIED is used to describe something that is connected or bound together. All of these words together can be used to describe the phrase 'knotted up, ' which generally refers to a situation that is complicated, difficult, or confusing.