One of two options on a true-or-false test.
Untrue, not factual, factually incorrect.
Based on factually incorrect premises.
Spurious, artificial.
Of a state in Boolean logic that indicates a negative result.
Uttering falsehood; dishonest or deceitful.
Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.
Not well founded; not firm or trustworthy; erroneous.
Not essential or permanent, as parts of a structure which are temporary or supplemental.
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.
Out of tune.
In a dishonest and disloyal way; falsely.