What word is the opposite to decent?

The opposite of "decent" depends on the context. Here are a few options:

For "morally good":

* Immoral

* Wicked

* Evil

* Dishonest

* Corrupt

For "of good quality":

* Poor

* Inferior

* Shoddy

* Substandard

* Unacceptable

For "respectable":

* Disreputable

* Scandalous

* Shameful

* Unworthy

* Undesirable

For "adequate":

* Inadequate

* Insufficient

* Unacceptable

To choose the best opposite, consider the specific meaning of "decent" in the sentence.