Synonyms for incidental

• (adj) incident, omissible (similar term), parenthetic (similar term), parenthetical (similar term), peripheral (similar term), secondary (similar term), basic (antonym)
  
  
• (adj) accompanying, attendant, concomitant, incidental to, related (similar term), related to (similar term)
  
  
• (adj) nonessential, inessential (similar term), unessential (similar term)
  
  
• (noun) incidental expense, minor expense, expense
  
  
• (noun) item, point
  
  

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