incidental

/ˌɪnsɪˈdɛntəl/
noun
  1. Something that is minor, secondary, or happens by chance, often used in the plural (incidentals) to refer to small extra costs or items.
    • The travel budget includes meals, lodging, and incidentals.
    • Don't forget to set aside money for incidentals like tips and souvenirs.
    • The contract covers all incidentals related to the event.
adjective
  1. Happening as a minor or less important part of something else; secondary.
    • We had some incidental expenses, like snacks and parking.
    • The cost of the hotel was incidental compared to the airfare.
    • Her role in the project was incidental, not central.
  2. Occurring by chance or as a side effect, not planned.
    • Any incidental damage to the property will be covered by insurance.
    • The meeting was incidental; we just happened to be in the same place.
    • The discovery of the ancient artifact was incidental to the construction work.
Antonyms
What does "incidental" mean? | whatsthatwordmean | whatsthatwordmean