Wiktionary
adv. In a clueless manner.
Usage examples of "cluelessly".
Notkin secures Joelle's veil for her during removal of the beaded coat and poncho, then lifts the veil slightly in a practiced two-finger gesture to deliver a double-cheek kiss that is sour with cigarettes and wine Joelle never smokes when veiled asking how Joelle got here and then without waiting for an answer offering her that odd kind of British-Columbian apple juice they'd found they both liked so, and that Joelle at home's abandoned and gone back to the Big Red Soda Water of childhood, which Notkin doesn't know, and still cluelessly considers extra-sweet Canadian juice to be pretty much both her and Joelle's biggest vices.
Maybe Dylan could concoct a half-assed story to explain what he and his brother were doing here when they were supposed to be on the road in New Mexico, but he didn't have the talent for deception or the time to craft a story to explain the gateway, the motel bathroom here on the hill, and Jilly peering cluelessly out at them as though she were Alice unsuccessfully attempting to scope the nature of the enchanted realm on the far side of the looking glass.
It wasn't just the engineers and scientists, all of them droning on cluelessly for a meeting that stretched on the ninety centons, somehow managing (with their unwillingness to admit that they knew nothing and their need to posture) to turn a circumstance that almost certainly meant the end of the fleet into an occasion for boredom.
Tuvok replied in the same language, and Pablo watched cluelessly as they carried on a strange glottal, whistley conversation in front of him.
I looked at him, yawning cluelessly as Norman explained about priles and ack-a-boos.