General antonyms:
* Verbose
* Prolix
* Rambling
* Wordy
* Circumstantial
* Long-winded
* Exhaustive
* Detailed
* Expansive
More specific antonyms:
* Diffuse (spreading out widely)
* Diffuse (lacking clarity or focus)
* Tedious (boring and lengthy)
* Repetitive (saying the same thing over and over)
* Unfocused (lacking a clear direction)
* Disorganized (lacking structure or order)
The best antonym will depend on the specific context in which you are using the word.