[weiming]

Why can't you say "the weather is pleasant"?

I can anticipate something like "being pleasant is averb, not an adjective" but then, I could say on the same grounds that "pleasing" is as well, we understand it as an adjective because it doesn't have an object (the weather is pleasing her), just like we understand "the weather is pleasant " in the same way, because it has no object. I hope no teacher is seriously making this distinction.

A:The weather is nice.
B:It's not nice to me.
A:Oh, that's not what I mean!