invalid

adjective, noun
/ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

Meaning

Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.

Example Sentences

The court declared the contract invalid.

Example Expressions

invalid argument

Synonyms

void, ineffective, worthless, weak, ill

Antonyms

valid, sound, effective

Collocations

invalid contract, invalid data, invalid reason

Related Vocabularies

a synthetic material that can be molded; flexible or easily shaped
Involving trust, especially with regard to the relationship between a trustee and a beneficiary.
Adjective: concerned with principles of right and wrong. Noun: a lesson about right and wrong from a...
abstaining from marriage and sexual relations; a person who does so
Relating to the part of the mind that influences thoughts and actions without full awareness.
having a lot of excess flesh; a natural oily substance in animal bodies

Explore More