Wiktionary
imprecisely
adv. In an imprecise manner.
WordNet
Usage examples of "imprecisely".
The rest were too imprecisely spoken to become anything more than a string of gibberish, but that didn't make the situation any less dangerous.
But it also happens to be necessary as an intermetallic hydride in the complex process that is used to create the drug rather imprecisely (for it's only good for ten thousand years) known as Immortality.