The word 'unraveller' can be replaced with other synonyms to convey similar meanings. Some of the synonyms include decipherer, decoder, analyzer, solver, and interpreter. These words refer to someone who unravels or deciphers a complex or confusing situation or text. Other synonyms for unraveller include untangler, disentangler, resolver, and unscrambler. These words imply the task of separating or untangling various strands or elements to uncover the underlying meaning. Furthermore, words like investigator, detective, and researcher are also suitable synonyms for the term 'unraveller', as they involve the process of uncovering hidden information and solving problems.