invalid -
force to retire, remove from active duty, as of firemen
remove remove something concrete, as by lifting, pushing, or taking off, or remove something abstract; "remove a threat"; "remove a wrapper"; "Remove the dirty dishes from the table"; "take the gun from your pocket"; "This machine withdraws heat from the environment"
invalid -
injure permanently; "He was disabled in a car accident"
invalid -
having no cogency or legal force; "invalid reasoning"; "an invalid driver's license"
valid still legally acceptable; "the license is still valid"
illegitimate contrary to or forbidden by law; "an illegitimate seizure of power"; "illicit trade"; "an outlaw strike"; "unlawful measures"
uncollectible,
bad feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad'); "my throat feels bad"; "she felt bad all over"; "he was feeling tough after a restless night"
fallacious,
unsound based on an incorrect or misleading notion or information; "fallacious hope"
false (used especially of persons) not dependable in devotion or affection; unfaithful; "a false friend"; "when lovers prove untrue"
