I'm afraid your ticket is invalid on this route.Mrs H described the knock at the door that woke her and her invalid husband at seven o'clock.When I was a child, there was a man who came to our chapel in an invalid chair.In one attack his invalid car was stolen and smashed.The survey attempted to answer critics who have dismissed international comparisons as invalid because of differences in cultural expectations about health care.
○○ adjective 1 USE something a contract, ticket, claim etc that is invalid is not legally or officially acceptable OPP valid Without the right date stamped on it, your ticket will be invalid.Validate ≠ invalidate From Longman Dictionary of Contemporary English invalid in‧val‧id 1 / ɪnˈvælɪd /