Cack-handedly

There was only one reason Siobhan could think of why anyone would do all of that, and try to cack-handedly cover up the fact by booking another flight to Bristol at the same time.

Source: wiktionary

I had crewed for him once or twice, cack-handedly. He only took me out, I think, because for some reason he thought I was good for a laugh.

Source: wiktionary

Yet, though Charles II curiously concurred with Fox's view of Vane's character, the political point emerges rather cack-handedly: after all, Restoration magistrates took a very hard line with hatted Quakers appearing before them.

Source: wiktionary