SAT GRE TOEFL IELTS

invalid

Definition

Not valid; legally or logically unacceptable, or a person made weak by illness or disability.

Example

"The contract was declared invalid due to missing signatures."
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Study tips featuring "invalid"

TOEFL Academic Vocabulary: Study by Topic How Context Clues Save You on the SAT Boost Your IELTS Writing With Precise Vocabulary

Related words

SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal