What is an antonym for clear?

There are many antonyms for "clear," depending on the context. Here are a few examples:

For clarity:

* Obscure

* Vague

* Ambiguous

* Unclear

* Muddy

* Confused

For visibility:

* Cloudy

* Foggy

* Opaque

* Hazed

* Dusty

* Blurred

For understanding:

* Unintelligible

* Misunderstood

* Confused

* Difficult

For straightforwardness:

* Complicated

* Complex

* Indirect

* Devious

To choose the most appropriate antonym, consider the specific meaning of "clear" in the sentence you are using it in.