The word 'unstaid' means to be unsteady, wavering, or unreliable. There are several synonyms for the term 'unstaid' that are commonly used to convey a similar meaning. These synonyms include unstable, precarious, fickle, inconstant, erratic, unpredictable, changeable, and capricious. Each of these words describes a lack of consistency or dependability and suggests that someone or something is not to be relied on. When used in literature or conversation, choosing the right synonym for 'unstaid' can help to convey a more nuanced or precise meaning and can enhance the impact of a particular phrase or sentence.