demerit

noun

1
the quality of being inadequate or falling short of perfection
they discussed the merits and demerits of her novel
he knew his own faults much better than she did
2
a mark against a person for misconduct or failure; usually given in school or armed forces
ten demerits and he loses his privileges

Also useful for “demerit”:Unscrambler— Rearrange the letters in “demerit”