ad. In an imperfect manner or degree; not fully or completely.
The Century Dictionary and Cyclopedia
In an imperfect manner or degree; not fully or completely.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in an imperfect or faulty way
Word Usage
"This range is very imperfectly seen from Primiero, and still more imperfectly from the Val di Canali, the perspective in both instances being so abrupt as only to show the peaks in line, one behind the other."