Synonym: dear, precious, priceless, worthwhile. Antonym: valueless. Similar words: valuable, invariable, evaluate, evaluation, invalid, invalidate, invariably, inviolable. Meaning: [ɪn'væljʊəbl] 
adj. having incalculable monetary, intellectual, or spiritual worth.
adj. having incalculable monetary, intellectual, or spiritual worth. 
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1. The new job will provide you with invaluable experience.
2. His knowledge of the area made him invaluable.
3. In his job, patience is an invaluable asset.
4. Your advice has been invaluable to us.
5. I was able to gain invaluable experience over that year.
6. A computer would have been invaluable for this job.
7. The video has become an invaluable teaching tool.
8. Mobile shops are invaluable to people in rural areas.
9. Your support has been invaluable to us.
10. Such data will prove invaluable to/for researchers.
11. John acknowledged Jill's invaluable help.
12. Local teachers provided invaluable help in developing the material.
13. This help was invaluable in focusing my ideas.
14. This technology is invaluable for pupils with poor sight.
15. Your help has been invaluable to us.
16. This information was invaluable to him.
17. You will find their help absolutely invaluable.
18. The internet is an invaluable source of information.
19. The book is an invaluable aid to teachers of literature.sentencedict.com
20. The computer is now an invaluable tool for the family doctor.
21. The book will be invaluable for students in higher education.
22. The research should prove invaluable in the study of linguistics.
23. The painting is invaluable.
24. Microscopy is an invaluable technique for studying the structure of cells.
25. The research should prove invaluable in the study of children's language.
26. Breast self-examination is invaluable for detecting cancer in its very early stages.
27. The book is an invaluable source of reference for the art historian.
28. No doubt he'd been looking forward to the wedding ever since it was announced, as an invaluable chance to cut a figure and do some good public relations work.
29. The vast knowledge of the country he has at his command will be invaluable in the job.
30. From a teacher's point of view, activities that can be done with minimal preparation are invaluable.
More similar words: valuable, invariable, evaluate, evaluation, invalid, invalidate, invariably, inviolable, invulnerable, in vain, invade, value, invasion, convalesce, face value, squabble, undervalue, convalescence, invincible, invisible, able, fable, table, cable, viable, unable, gabled, notable, stable, liable.