adverb (r)

• as a signal(adv.all)

  Example:
  A term that is used signally rather than symbolically.
  

  source: wordnet30
• in a signal manner(adv.all)

  Example:
  Signally inappropriate methods.
  

  Synonym:
  remarkably, unmistakably
  

  source: wordnet30
• In a signal manner; eminently.(adverb)

  source: webster1913