The word "unequivocable" means clear, certain, and definite. There are several synonyms for this word, including unambiguous, unmistakable, indisputable, incontrovertible, plain, and clear-cut. The term "unambiguous" refers to something that is not open to interpretation or confusion. "Unmistakable" means that something is so clear that it cannot be mistaken. "Indisputable" is used to describe something that is beyond doubt. "Incontrovertible" is used to describe something that cannot be disputed or contradicted by evidence. "Plain" refers to something that is straightforward and easy to understand. "Clear-cut" is used to describe something that is clear and defined without any confusion.