'unspectacled' originates from English, formed by the prefix 'un-' (meaning 'not') attached to the adjective 'spectacled'. 'Spectacled' derives from the noun 'spectacle', which comes from Old French 'spectacle' and ultimately from Latin 'spectaculum' and the verb 'spectare' meaning 'to look'.

'unspectacled' developed by combining the negative prefix 'un-' with 'spectacled' (adjective) in modern English; 'spectacled' itself came from the noun 'spectacle' borrowed via Old French from Latin 'spectaculum', and entered Middle English as 'spectacle'/'spectacled'.

Initially it meant 'not wearing spectacles', and this basic meaning has remained essentially unchanged in modern usage.