in ‧ val ‧ u ‧ a ‧ ble /ɪnˈvæljuəb ə l, -jəb ə l $ -ˈvæljəb ə l/ BrE AmE adjective
[ Word Family: noun : ↑ valuables , ↑ value , values, ↑ valuation , ↑ valuer , ↑ overvaluation ≠ UNDERVALUATION , ↑ devaluation ; adjective : ↑ valuable , ↑ invaluable , overvalued ≠ UNDERVALUED , ↑ valueless , ↑ valued ; verb : ↑ value , ↑ devalue , ↑ overvalue ≠ ↑ undervalue ]
extremely useful
invaluable to/for
Your advice has been invaluable to us.
invaluable in/for (doing) something
This help was invaluable in focussing my ideas.
The internet is an invaluable source of information.
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THESAURUS
■ very useful
▪ valuable very useful in helping you do something:
His information was very valuable to the police.
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The course was a valuable experience for me.
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a valuable contribution
▪ invaluable extremely useful in helping you do something:
His help was invaluable.
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The drug could be invaluable for treating cancer patients.
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an invaluable experience
▪ indispensable someone or something that is indispensable is so useful and important that you cannot do something without them:
For walkers, a good compass is indispensable.
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He became an indispensable part of the team.
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an indispensable guide to travelling in Italy
▪ be great for something informal to be very useful for doing something:
The bag is great for taking on holiday.