Absolute concepts. Some readers consider modifiers such as perfect and unique to be absolute concepts; according to this view, a thing is either unique or it isn’t, so modified forms of the concept don’t make sense. However, many seemingly absolute words have multiple meanings, all of which are widely accepted as correct. For example, unique may mean one of a kind or unequaled, but it can also simply mean distinctive or unusual.

If you think your readers will object to a construction such as more perfect (which appears in the U.S. Constitution), then avoid such uses.