1 not legally or officially acceptable:
The treaty was declared invalid because it had not been ratified. * People with invalid papers are deported to another country.
2 not based on all the facts, and therefore not correct:
an invalid argument
3 (computing) of a type that the computer cannot recognize:
An error code will be displayed if any invalid information has been entered. * invalid characters
OPPVALID
noun a person who needs other people to take care of them, because of illness that they have had for a long time:
She had been a delicate child and her parents had treated her as an invalid. * his invalid wife
verb [VN] ~ sb (out)
Rate this entry
About this entry
This is a English–English dictionary entry.
Sourced from Main Dictionary in Lughet's collection.
This word also appears under other sources in Lughet's collection — see the list below.
This entry for invalid is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is invalid a noun, verb, or something else?
In this entry, invalid is tagged as adjective.
Does invalid appear elsewhere on Lughet?
Yes — invalid appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.
