Invalid and Unlogical

Invalid adjective - Chronically or repeatedly suffering from poor health.

Unlogical and invalid are semantically related. In some cases you can replace term "Unlogical" with "Invalid", this adjectives are similar.

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

Unlogical adjective - Lacking in correct logical relation.

Invalid and unlogical are semantically related. Sometimes you can use "Invalid" instead an adjective "Unlogical".