Online Google Dictionary

invaluable 中文解釋 wordnet sense Collocation Usage Collins Definition
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Extremely useful; indispensable,
  1. Extremely useful; indispensable
    • - an invaluable source of information

  1. having incalculable monetary, intellectual, or spiritual worth
  2. (invaluableness) the positive quality of being precious and beyond value
  3. Of great value; costly, precious, priceless; Very useful
  4. Includes a timeline of 600+ key events in the history of sociology
  5. Too valuable to measure; priceless