'vaguely-adjusted' originates from the combination of 'vague' and 'adjusted'. 'Vague' comes from Latin 'vagus', meaning 'wandering' or 'uncertain', and 'adjusted' comes from Latin 'adjuxtare', meaning 'to bring into order'.

'vague' changed from the Old French word 'vague', and 'adjusted' evolved from the Old French 'ajuster', eventually forming the modern English term 'vaguely-adjusted'.

Initially, 'vague' meant 'wandering' or 'uncertain', and 'adjusted' meant 'to bring into order'. Together, they evolved to describe something modified in an unclear manner.