Adjektive
incorrect [ more incorrect ; most incorrect]
wrong [ more wrong/wronger ; most wrong/wrongest ]
untrue [ more untrue ; most untrue ]
false [ falser ; falsest]
improper [ more improper ; most improper ]
unsound [ more unsound/unsounder ; most unsound/unsoundest ]
mistaken [ more mistaken ; most mistaken]
weak {ling.}
untruthful [ more untruthful ; most untruthful]