invaluable

Definitions

in- (not) + valuable — but here in- means 'not [able to be valued]': so valuable that no price can capture it. It is NOT 'not valuable.' This is the famous trap: invaluable is even more precious than valuable.

Common Collocations

• 1.invaluable resource宝贵的资源
• 2.invaluable contribution无价的贡献
• 3.invaluable experience宝贵的经验
• 4.prove invaluable证明极有价值

Example Sentences

• 1.

  Her advice has been invaluable throughout the project.

• 2.

  Volunteers provide invaluable support to the charity.

Easily Confused

invaluable vs. valueless — These look like a pair but mean opposite things. invaluable = priceless, extremely valuable (in- = can't be valued). valueless = worth nothing. If you mean 'worthless,' never say invaluable.