Invaluable: Definition, Usage & Common Mistakes

Meaning 1：extremely valuable (invaluable)

invaluable 🔊

/ɪnˈvæljuəbl/

adj.

too valuable to have a price; extremely helpful or important, to the point where you can't imagine doing without it.

Invaluable meaning illustrated by a mentor sharing essential knowledge with a colleague in an office.

extremely valuable 🔊

➕

/ɪkˈstriːmli ˈvæljuəbl/

adj.

Describes something that is so helpful or important that its value cannot be measured; essential and irreplaceable.

📁 Category：School Education 🔖 Level：Intermediate

📘 Details & Usage

📖 Root Explanation

From prefix 'in-' (meaning 'not') + 'valuable', but implying 'beyond value' rather than 'not valuable'.

💡 Mnemonic

Think: 'Invaluable' sounds like 'in-value-able' – something so valuable it's in a league of its own, priceless!

📖 Example

My friend’s study advice was invaluable to me during my IELTS preparation. 🔊 My friend's study advice was incredibly helpful during my IELTS preparation.

🔗 Collocations

invaluable experience – an experience that is extremely beneficial and cannot be replaced

invaluable assistance – help that is so important it is beyond measure

invaluable resource – a resource that is essential and of supreme value

🔄 Synonyms

priceless (adj.) – so valuable that a price cannot be set

indispensable (adj.) – absolutely necessary and cannot be done without

irreplaceable (adj.) – cannot be replaced by anything else

🚫 Antonyms

worthless (adj.) – having no value or use

dispensable (adj.) – able to be replaced or done without

📖 Cultural Story

The word 'invaluable' evolved from Latin roots, combining 'in-' (not) with 'valuabilis' (valuable). In English, it shifted to mean 'so valuable it cannot be priced', often used in contexts like business or academia to denote supreme importance.