Faulty

Fault"y (?), a. 1. Containing faults, blemishes, or defects; imperfect; not fit for the use intended.

Created once
So goodly and erect, though faulty since.
Milton.

2. Guilty of a fault, or of faults; hence, blamable; worthy of censure. Shak.

The king doth speak . . . as one which is faulty.
2 Sam. xiv. 13.