a) insincere, inattentive, indifferent, inhuman, inactive, inconsiderate, incapable, insensitive, indecent.

b) ungifted, unjust, unkind, unfaithful, untalented, unfair, unfrieandly, unreliable, unreasonable, unsociable.

c) dispassionate, dishonest.

d) improper, imprudent, imbalanced.

e) irresolute, irresponsible.