I've read/heard a few different things on the perfunctory nature of words and how they fail to convey emotions or abstract thoughts well.
Here is why: Words are symbols which have specific, assigned meanings: the denotative, which is the universally accepted definition of the word, and the connotative, which is the popular understanding of the word.
So for example, gay first meant something along the lines of "cheery" or "joyful", but eventually the connotative meaning changed and became the dominant understanding of the word, which meant "homosexual". Therefore, this inert symbol completely changed meanings in a generation.
Furthermore, words came into being as a tool for survival. Early man needed a way of communicating "there's shelter over there" or "watch out for the sabertooth tiger" or "eat these berries". Survival stuff, you know?
But when it comes to more abstract things like "love", "remorse", "respect" or something being "bittersweet", words are clunky and hard to work with. What about those feelings we have that there are no words for? All we are stuck with is saying something like "I kinda felt down today."
Well the truth of the matter is that you felt something much more complex and subtle than just feeling "down", but there is no way to describe that. That, I think, is why visual art and music are so popular. They enable us to communicate things that there aren't any words for. For example, Edvard Munch's "The Scream":

The picture speaks for itself in a way that 100 pages of description could never come close to matching.
Is this interesting to you? Probably not. If you are interested in this stuff though, you're either pirateninja6 or mattnash. Hopefully someone will surprise me.