What are some antonyms to the word flawless?

General:

* Imperfect

* Defective

* Faulty

* Blemished

* Damaged

* Deformed

* Incomplete

* Erroneous

* Unsound

* Inaccurate

Specific to Appearance:

* Scratched

* Chipped

* Cracked

* Dented

* Discolored

* Uneven

* Rough

Specific to Performance/Quality:

* Substandard

* Poor

* Mediocre

* Inferior

* Deficient

* Inadequate

* Unsatisfactory

Specific to Character/Behavior:

* Flawed

* Imperfect

* Erratic

* Erroneous

* Inconsistent

* Untrustworthy

* Unreliable

The best antonym will depend on the context in which you are using the word "flawless."