adverb (r)

• without deviation(adv.all)

  Example:
  The path leads directly to the lake.
  

  Synonym:
  direct, straight
  

  source: wordnet30
• without anyone or anything intervening(adv.all)

  Example:
  These two factors are directly related.
  He was directly responsible.
  Measured the physical properties directly.
  

  source: wordnet30
• without delay or hesitation; with no time intervening(adv.all)

  Synonym:
  at once, forthwith, immediately, instantly, like a shot, now, right away, straight off, straightaway
  

  source: wordnet30
• in a forthright manner; candidly or frankly(adv.all)

  Example:
  He didn't answer directly.
  

  Synonym:
  flat, straight
  Antonym:
  indirectly
  

  source: wordnet30
• In a direct manner; in a straight line or course.(adverb)

  source: webster1913