INVALID Definition & Meaning - Merriam-Webster
Oct 29, 2026 · The meaning of INVALID is not valid. How to use invalid in a sentence.
INVALID | English meaning - Cambridge Dictionary
INVALID definition: 1. An invalid document, ticket, law, etc. is not legally or officially acceptable: 2. An invalid…. Learn more.
INVALID Definition & Meaning | Dictionary.com
A person who is very sick or injured and needs frequent care is an invalid. Also, something no longer current or useful is invalid. The …
invalid - Wiktionary, the free dictionary
Oct 1, 2026 · invalid (comparative more invalid, superlative most invalid) Not valid; not true, correct, acceptable, or appropriate. …
INVALID Synonyms: 266 Similar and Opposite Words - Merriam-Webster
6 days ago · Synonyms for INVALID: fragile, weak, weakly, sickly, dying, sick, frail, ailing; Antonyms of INVALID: well, healthy, …
INVALID | definition in the Cambridge English Dictionary
INVALID meaning: 1. An invalid document, ticket, law, etc. is not legally or officially acceptable: 2. An invalid…. Learn more.
Invalid - definition of invalid by The Free Dictionary
1. an infirm or sickly person, esp. one who is too sick or weak to care for himself or herself. 2. unable to care for oneself due to …
Invalid - Definition, Meaning & Synonyms | Vocabulary.com
A person who is very sick or injured and needs frequent care is an invalid. Also, something no longer current or useful is invalid. The …
Invalid - Wikipedia
Look up invalid in Wiktionary, the free dictionary. This disambiguation page lists articles associated with the title Invalid. If an internal …
INVALID Synonyms & Antonyms - 81 words | Thesaurus.com
Find 81 different ways to say INVALID, along with antonyms, related words, and example sentences at Thesaurus.com.