Wiktionary
unintelligibly
adv. In an unintelligible manner.
WordNet
unintelligibly
adv. in an unintelligible manner; "the foreigners spoke unintelligibly" [syn: ununderstandably] [ant: intelligibly]
Usage examples of "unintelligibly".
If anyone knew the reasons, they never made them plain to Bart. In school Himyar taught him, spiritedly but unintelligibly, about the various traditions of Earthly art.
He touched one eyebrow in salute, then nodded at the Duro navigator, who blinked his huge red eyes and gargled unintelligibly.