Antonyms of quite:
barely, hardly, just, kind of, marginally, minimally, scarcely, slightly, superficially, approximately, roughly, somewhat, half, halfway, incompletely, part, partially, partly, awfully, beastly, deadly, especially, exceedingly, exceptionally, extremely, frightfully, greatly, heavily, highly, hugely, mightily, mortally, particularly, surpassingly, terribly, very, considerably, extensively, significantly, substantially.
Examples of usage:
  1. " She is quite right.
    "A Prairie Courtship", Harold Bindloss.
  2. I did not quite say that.
    "The Claverings", Anthony Trollope.
  3. " It's not quite that bad.
    "The Egyptian Cat Mystery", Harold Leland Goodwin.