'unclearly-stated' originates from the combination of 'unclearly' and 'stated', where 'un-' is a prefix meaning 'not', 'clear' from Latin 'clarus' meaning 'bright', and 'state' from Latin 'stare' meaning 'to stand'.

'unclearly-stated' evolved from the combination of 'unclearly' and 'stated', which were used separately in Middle English and eventually combined in modern English.

Initially, 'unclearly-stated' meant 'not clearly expressed', and this meaning has largely remained the same in modern usage.