invalidity
/,invə'liditi/
Học thuậtThân thiện
Definition
- Noun:
- The state of being invalid; lack of validity or legal force: The condition of not being acceptable according to the law, rules, or logic.
- The condition of being disabled by illness or injury: (Archaic or formal) The state of being an invalid; chronic ill health or disability.
Examples of Usage
- Noun (Lack of validity):
- The court ruled on the invalidity of the contract due to a missing signature.
- Scientists pointed out the invalidity of the experimental method, which made the results unreliable.
- Noun (Ill health - less common):
- His prolonged invalidity prevented him from returning to work. (This usage is now rare.)
Advanced Usage
- "Presumption of invalidity": A legal principle where something is assumed to be invalid unless proven otherwise.
- In trademark law, a mark may be subject to a presumption of invalidity if it is merely descriptive.
- "Patent invalidity": A specific legal finding that a patent is not legally enforceable.
- The company filed a lawsuit seeking a declaration of patent invalidity.
Variants and Related Words
- Invalid (adj): Not valid; without legal force. / (n, archaic): A person made weak or disabled by illness or injury.
- Your parking permit is invalid. (adj)
- Invalidate (v): To make something invalid; to deprive of legal force.
- New evidence may invalidate the previous theory.
Synonyms
- Nullity: The state of being legally void and invalid.
- Voidness: The quality of having no legal force or effect.
- Illogicality: The quality of being illogical (related to the first sense).
- Infirmity: The state of being physically weak, especially from old age or illness (related to the second sense).
Antonyms
- Validity: The quality of being logically or factually sound; legal acceptability.
- Soundness: The state of being in good condition; robustness.
Noun
- illogicality as a consequence of having a conclusion that does not follow from the premisses