English Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition invalid in British English

invalid noun

[countable] noun
/ˈɪnvəlɪd/
1

someone who is ill or injured and is unable to look after themselves

Example

He had been an invalid for many years.

Synonyms and related words
1.1

relating to someone who is ill or injured, especially permanently

Example

He lives with his invalid mother.

Synonyms and related words
Definition invalid in British English