Synonyms for invalid
ˈɪn və lɪd; Brit. -ˌlidin·valid

WiktionaryRate these synonyms:0.0 / 0 votes

1. invalid1

   Synonyms:
   nonvalid

   Antonyms:
   valid

Complete Dictionary of Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. invalid

   Synonyms:
   infirm, sick, weakly, frail, feeble

   Antonyms:
   strong, vigorous, healthy, well

Princeton's WordNetRate these synonyms:3.0 / 1 vote

1. invalid, shut-inadjective

   someone who is incapacitated by a chronic illness or injury

   Synonyms:
   shut-in

   Antonyms:
   binding, sound, well-grounded, unexpired, reasoned, valid, legal, effectual, legitimate, validated, logical

2. invalidadjective

   having no cogency or legal force

   "invalid reasoning"; "an invalid driver's license"

   Antonyms:
   legitimate, logical, valid, validated, binding, sound, legal, reasoned, unexpired, well-grounded, effectual

3. invalidverb

   no longer valid

   "the license is invalid"

   Antonyms:
   logical, well-grounded, unexpired, effectual, sound, reasoned, legal, legitimate, binding, valid, validated

4. invalidverb

   force to retire, remove from active duty, as of firemen

   Synonyms:
   disable, handicap, incapacitate

   Antonyms:
   validated, effectual, well-grounded, unexpired, legitimate, sound, valid, binding, legal, logical, reasoned

5. disable, invalid, incapacitate, handicapverb

   injure permanently

   "He was disabled in a car accident"

   Synonyms:
   incapacitate, handicap, disable, disenable, hamper, hinder

   Antonyms:
   well-grounded, valid, sound, legitimate, legal, binding, validated, unexpired, reasoned, logical, effectual

Matched Categories

1. • Remove

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. invalidadjective

   Synonyms:
   (Law.) void, null, of no legal force, null and void

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. invalidadjective

   Synonyms:
   null, void, of no efficacy, baseless, unfounded

2. invalidadjective

   Synonyms:
   valetudinary

3. invalidnoun

   Synonyms:
   valetudinarian

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "invalid":

   non-valid, null, invalids, in-valid, disabled, incorrect, impermissible, void, valid, ineffective, spoilt, invalidated, nil, zero, invalidity, nullity

How to pronounce invalid?

How to say invalid in sign language?

Usage in printed sourcesFrom: 

1. 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Words popularity by usage frequency

How to use invalid in a sentence?

1. Louis Uccellini:

   Still, it's important that we scrutinize questionable measurements and reject those that scientists deem invalid to ensure the public's continued confidence in the U.S. climate record.

2. Norbu Dunzhub:

   The identification was done without authorization. It was illegal and invalid.

3. Charlie Schulz:

   Nothing is invalid. Except bullying, invalidation and pineapple pizza.

4. Democratic Rep. Jerry Nadler:

   Well, the questions we will ask Attorney General Matt Whitaker will be about Attorney General Matt Whitaker expressed hostility to the investigation, how Attorney General Matt Whitaker can possibly supervise it when Attorney General Matt Whitaker's expressed, when Attorney General Matt Whitaker's come out and said that the investigation is invalid.

5. Tim Jost:

   District Judge Reed O'Connor has declared the individual mandate unconstitutional and the rest of Affordable Care Act invalid, but District Judge Reed O'Connor has not blocked its continued operation.