'uninspectability' originates from English, formed by the prefix 'un-' (a negating element) + 'inspect' (from Latin roots) + the suffix '-ability' (from Latin '-abilitas' via French), meaning 'the quality of not being able to be inspected'.

'inspect' itself comes from Latin 'inspectare' / 'inspicere' (in- 'into' + specere 'to look'), passed into Middle French and Middle English as 'inspect', while the nominalizing suffix '-ability' derives from Latin '-abilitas' and Old French developments; the modern compound 'uninspectability' is a productive English formation combining these elements.

Initially, the Latin root meant 'to look into' or 'to examine'; over time, with the addition of English derivational prefixes and suffixes, the composite term came to mean 'the condition of not being examinable' (i.e., inability to be inspected).