English to English

adverb (r)

• without speed (`slow' is sometimes used informally for `slowly')(adv.all)

  Example:
  Glaciers move tardily.
  

  Synonym:
  easy, slow, slowly
  Antonym:
  apace, chop-chop, quickly, rapidly, speedily
  

  source: wordnet30
• later than usual or than expected(adv.all)

  Example:
  Notice came so tardily that we almost missed the deadline.
  

  Synonym:
  belatedly, late
  Antonym:
  ahead of time, early, too soon
  

  source: wordnet30
• In a tardy manner; slowly.(adverb)

  source: webster1913