amply
abundantly, bountifully, capaciously, completely, copiously, extensively, fully, generously, greatly, lavishly, liberally, plenteously, plentifully, profusely, richly, substantially, thoroughly, unstintingly, well, with a blank cheque, with a free hand, without stinting
Antonyms
inadequately, insufficiently, meagrely, poorly, scantily, skimpily, sparsely, thinly