A. disagreeable for
B. inconvenient for
C. unpleasant for
D. unsuitable for
congenial : (of a person) pleasing or liked on account of having qualities or interests that are similar to one’s own.
disagreeable : unpleasant.
inconvenient : causing trouble, difficulties, or discomfort.
unpleasant : causing discomfort, unhappiness, or revulsion.
unsuitable : not fitting or appropriate
Antonym of congenial is disagreeable
