The amount of smug confidence emanating from your comments is honestly stifling, especially considering how incredibly wrong you are. But let me go ahead and respond to you now in a much more meaningful way.

“Unsweet” is not a clipping of “unsweetened.” “Unsweet” is an adjective meaning that sweetness has been removed from something. “Unsweetened” means that sweetness was never added in the first place. They are two different words with two different meanings. When a server uses “unsweet” to mean “unsweetened,” they are using the word incorrectly and in the wrong sense.

“TV” is an initialism, which is a type of abbreviation. How you arrived at the conclusion that “TV” is simply a shortening of the word “television,” I have no idea. It is quite obvious, however, that you are not fully aware of how the English language actually functions. The fact that you are able to articulate yourself in English at all is frankly amazing, especially considering the sheer amount of smugness following you around.