What is a synonym for correct?

Here are some synonyms for "correct," depending on the context:

Formal:

* Accurate

* Precise

* Exact

* True

* Valid

* Right

* Proper

* Sound

* Legitimate

* Authentic

Informal:

* Right on

* Spot-on

* On the money

* Dead right

* True to life

Other:

* Faultless

* Flawless

* Unerring

* Unmistakable

* Undisputed

* Verified

The best synonym will depend on the specific situation and the tone you want to convey.