partly

in part, partially, to a degree, in some degree, in some measure, measurably, somewhat, noticeably, notably, in some part, incompletely, insufficiently, inadequately, up to a certain point, so far as possible, insofar as was then possible, not wholly, not entirely, as much as could be expected, to some extent, to a certain extent, within limits, slightly, to a slight degree, in a portion only, in some ways, in certain particulars, only in details, in a general way, not strictly speaking, not in accordance with the letter of the law, in bits and pieces, by fits and starts, carelessly, with large omissions, short of the end, at best, at worst, at most, at least, at the outside.

Antonyms completely*, wholly, entirely.