Stitched up is typically used to describe a situation where someone has been betrayed or double-crossed. However, there are many other synonyms available to express the same sentiment. Some of these words include: deceived, hoodwinked, bamboozled, tricked, duped, conned, swindled, and cheated. Each of these words can be used to describe a situation where someone has been taken advantage of in some way, whether it be through lies, deception, or other means. When choosing a synonym for stitched up, it is important to consider the specific context of the situation and choose a word that accurately reflects the feeling of betrayal.