The phrase "haddest mind" is an archaic form of the verb "to intend" or "to want". It is no longer commonly used in modern English. However, there are several synonyms that can be used to express a similar meaning, such as "desire", "aim", "plan", "wish", "hope", "aspiration", and "ambition". Each of these words conveys a sense of wanting or intending to do something. If you are writing or speaking in modern English, it is best to use one of these synonyms instead of the outdated phrase "haddest mind".