“Unique” singles out one of a kind. That “un” at the beginning is a form of “one.” A thing is unique (the only one of its kind) or it is not. Something may be almost unique (there are very few like it), but nothing is “very unique.”
This is the ten-year anniversary of the Common Errors in English Usage calendar. To celebrate, we are bringing back some of our favorite interesting, funny, but sometimes merely silly entries through the years before going on hiatus in 2016.
Enjoy the calendar? Buy the book!