faulty

As an adjective faulty

is having or displaying faults; not perfect; not adequate or acceptable.

As a verb faulted is

(fault).

As an adjective faulty

is having or displaying faults; not perfect; not adequate or acceptable.

As a noun role is

a character or part played by a performer or actor.

As adjectives the difference between faulty and undefined

is that faulty is having or displaying faults; not perfect; not adequate or acceptable while undefined is lacking a definition or value.

As adjectives the difference between unjustified and faulty

is that unjustified is not justified while faulty is having or displaying faults; not perfect; not adequate or acceptable.

As an adjective faulty

is having or displaying faults; not perfect; not adequate or acceptable.

As a noun defect is

a fault or malfunction.

As a verb defect is

to abandon or turn against; to cease or change one's loyalty, especially from a military organisation or political party.

As an adjective faulty

is having or displaying faults; not perfect; not adequate or acceptable.

As a verb brokedown is

(informal).

Faulty is a related term of obnoxious.

As adjectives the difference between faulty and obnoxious

is that faulty is having or displaying faults; not perfect; not adequate or acceptable while obnoxious is extremely unpleasant, offensive, very annoying, odious or contemptible.

Faulty is a related term of snide.

As adjectives the difference between faulty and snide

is that faulty is having or displaying faults; not perfect; not adequate or acceptable while snide is disparaging or derisive in an insinuative way.

As a noun snide is

an underhanded, tricky person given to sharp practise; a sharper; a beat.

Faulty is a related term of unnatural.

As adjectives the difference between faulty and unnatural

is that faulty is having or displaying faults; not perfect; not adequate or acceptable while unnatural is not natural; supernatural or artificial.

As adjectives the difference between faulty and heinous

is that faulty is having or displaying faults; not perfect; not adequate or acceptable while heinous is totally reprehensible.