>>>>>What's the opposite from the following sentence: "today is a bright sunny day"?
>>>>>
>>>>>Depends. What is the opposite of "today"?
>>>>
>>>>That was not the question. Opposite of a sentence, not individual words.
>>>
>>>Tomorrow will be hail and rain.
>
>>May be a true opposite - I mean, my sentence was .t. when I wrote it, and I doubt that you're being hailed from above today, so yours was .f., which makes it opposite.
>
>I don't if I'm adding anything to this conversation, but isn't "...bright sunny.." redundant?

In my experience, it's not. I've seen many dull sunny days here, when it's 90/90 (humidity/Fahrenheit). Bright is when the sky is blue, not off-gray.