WordGarden.io

invalidate

B2
Fairly common

Pronunciation

UK

  • /ɪnvˈælɪdˌeɪt/

US

  • /ˌɪnˈvælɪˌdeɪt/

Meanings

Verb

  1. to make something no longer valid, acceptable, or usable

  2. to show that a claim, argument, or result is wrong or unsound

  3. to make a document, decision, or legal act void

More meanings
  1. to dismiss or deny the legitimacy of someone's feelings or experience

  2. to mark cached data, a token, or a software state as no longer current or usable

Beyond the definition

Imagine building a tall tower of blocks. If someone pulls out a key block at the bottom, the whole thing loses support and falls apart. To invalidate something means to show that it is wrong or to take away its force, value, or official standing. A judge might invalidate a contract if its terms are illegal, and scientists often try to show that a theory does not hold up under testing. You can also invalidate someone's feelings by brushing them aside. In simple terms, it means making something no longer accepted, sound, or true.

Examples

  1. 1

    Contract

    One missing signature can invalidate the contract.

  2. 2

    Warranty

    Opening the laptop yourself may invalidate the warranty.

  3. 3

    Constitutional law

    The court invalidated the law because it conflicted with the constitution.

  4. 4

    Research results

    A mistake in the data invalidated the results of the experiment.

More examples
  1. 5

    New evidence

    The new evidence invalidated his original explanation of what happened.

  2. 6

    Emotional support

    Try not to invalidate her feelings by telling her she is overreacting.

    • Patterninvalidate someone's feelings

      make that person feel their feelings are wrong or unimportant

See also

Similar

Shades of meaning

Contrast

Used with (collocations)

  • invalidate a contract
  • invalidate a claim
  • invalidate an argument
  • invalidate a result

Word family

Explore

Forms and spellings

4 forms open this card.

Main spelling

  • invalidateverb

Forms

  • invalidatedpast tenseverb
  • invalidating-ing formverb
  • invalidatesverb