The fewest possible words conveying the most precise meaning — that, in a nutshell, is what a well-trimmed piece of writing should look like. Short and concise is only one part of the equation; it has to communicate exactly what you want to impart to the reader, too.
Some writers can pull that ideal balance off in the first draft. Unless you’re wickedly blessed in both talent and skill, though, don’t count on it. Like most of us, you’ll need to revise, refine and rework your draft in order to get there.
When you write this way, your writing can be described as graceful and elegant. The lack of unnecessary language makes every element count, allowing the reader to focus on the content, rather than the excess of words on the page. Reading feels like it flows at a pace that mirrors real time, rather than slow-motion.
There are things you can look out for during review that will steer you towards wordy elements in your text. Some writing software, in fact, can point them out to you, so use those if you want help on this end. Another thing you can do is imagine the action you’re describing, matching the cadence of the prose with the events taking place in your head.