'Mysteriously' definitions:

Definition of 'mysteriously'

From: WordNet
adverb
In a cryptic manner; "we will meet again," he said cryptically [syn: cryptically, enigmatically, mysteriously]

Definition of 'Mysteriously'

From: GCIDE
  • Mysteriously \Mys*te"ri*ous*ly\, adv. In a mysterious manner. [1913 Webster]

Synonyms of 'mysteriously'

From: Moby Thesaurus