invalidadjective
uk/ɪnˈvæl.ɪd/us/ɪnˈvæl.ɪd/An invalid document, ticket, law, etc. is not legally or officially acceptable:
I'm afraid your driving licence is invalid in Eastern Europe.
An invalid opinion, argument, etc. is not correct, usually because it is not logical or not based on correct information:
an invalid argument
Thesaurus: synonyms and related words
Wrong
- aberrant
- abnormal
- amiss
- anomaly
- awry
- bark
- flawed
- gross
- grossly
- have no business doing sth idiom
- imprecise
- improper
- impropriety
- irregular
- mis-
- misspeak
- mistaken
- off beam
- quarrel with sth
- speak
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invalidly
adverb uk/ɪnˈvæl.ɪd.li/us/ɪnˈvæl.ɪd.li/