CEFR B1

invalid

adjective

Meaning

Not valid; unacceptable or legally or officially unacceptable.

Examples

The referee ruled the goal invalid due to an offside call.
His argument was invalid because it was based on false premises.

Synonyms: incorrect, unacceptable, erroneous, unsound

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invalid (B1)

adjective

Pronunciation: /ɪnˈvælɪd/

Definition

Not valid; unacceptable or legally or officially unacceptable.

Examples

The referee ruled the goal invalid due to an offside call.
His argument was invalid because it was based on false premises.
The software rejected the password, stating it was invalid.

How to Use invalid

invalid argument (collocation): A line of reasoning that is logically flawed. — "The politician's speech was full of invalid arguments."
invalid input (collocation): Data entered into a computer system that does not meet the required format or constraints. — "Please check the form for any invalid input before submitting."

Synonyms of invalid

Words with a similar meaning to invalid:

Antonyms of invalid

Words with the opposite meaning to invalid:

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