Same word as impeccably:
admirably, correctly, excellently, exquisitely, faultlessly, fitly, flawlessly, ideally, impeccably, superbly, superlatively, supremely, to perfection, wonderfully
admirably, correctly, excellently, exquisitely, faultlessly, fitly, flawlessly, ideally, impeccably, superbly, superlatively, supremely, to perfection, wonderfully