a.
1.
Faulty, defective, imperfect.
2.
Wicked, mischievous, depraved, immoral, sinful, corrupt, unprincipled, abandoned, demoralized, bad, worthless, profligate, iniquitous.
3.
Foul, bad, impure.
4.
Impure, debased, faulty, corrupt.
5.
Unruly, refractory, contrary.