Synonyms for invalid

• (adj) bad (similar term), uncollectible (similar term), fallacious (similar term), unsound (similar term), false (similar term), invalidated (similar term), nullified (similar term), null (similar term), void (similar term), sophistic (similar term), sophistical (similar term), illegitimate (related term), valid (antonym)
  
  
• (adj) expired (similar term)
  
  
• (noun) shut-in, sick person, diseased person, sufferer
  
  
• (verb) remove
  
  
• (verb) disable, incapacitate, handicap, injure, wound
  
  

Download the free dictionary for Android →