Invalid and Unprotected

Invalid adjective - Chronically or repeatedly suffering from poor health.

Unprotected and invalid are semantically related. in defenceless topic. In some cases you can use "Unprotected" instead an adjective "Invalid".

Nearby Words: invalidate, invalidated, invalidity, invalided, invalidation

Unprotected adjective - Lacking protection from danger or resistance against attack.

Invalid and unprotected are semantically related. Sometimes you can use "Invalid" instead an adjective "Unprotected".