English to English

noun (n)

• liveliness and eagerness(noun.attribute)

  Example:
  He accepted with alacrity.
  

  Synonym:
  briskness, smartness
  

  source: wordnet30
• A cheerful readiness, willingness, or promptitude; joyous activity; briskness; sprightliness; as, the soldiers advanced with alacrity to meet the enemy.(noun)

  source: webster1913