Untrue, not factual, factually incorrect.
Not essential or permanent, as parts of a structure which are temporary or supplemental.
Out of tune.
Based on factually incorrect premises.
Used in the vernacular name of a species (or group of species) together with the name of another species to which it is similar in appearance.
Uttering falsehood; dishonest or deceitful.
Not well founded; not firm or trustworthy; erroneous.
Spurious, artificial.
Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.
One of two options on a true-or-false test.
To incorrectly decode noise as if it were a valid signal.
In a dishonest and disloyal way; falsely.
Not valid; not true, correct, acceptable or appropriate.
Suffering from disability or illness.
Intended for use by an invalid.
To make invalid or affect with disease.
To exempt from (often military) duty because of injury or ill health.