Invalid and Lunkheaded

Invalid adjective - Chronically or repeatedly suffering from poor health.

Lunkheaded and invalid are semantically related. In some cases you can use "Lunkheaded" instead an adjective "Invalid".

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

Lunkheaded adjective - Not having or showing an ability to absorb ideas readily.

Invalid and lunkheaded are semantically related. Sometimes you can use "Invalid" instead an adjective "Lunkheaded".