Definitions of incidental

1. an item that is incidental

2. ( frequently plural) an expense not budgeted or not specified; " he requested reimbursement of $ 7 for incidental expenses"

3. Something casual or subordinate.

4. INCIDENTALNESS.

5. Casual; liable to happen unexpectedly; happening as a chance feature of something else; as, incidental expenses.

6. Falling out: coming without design: occasional: accidental.

7. Occasional; accidental.

8. Occurring in the course of something else; contingent.

9. Coming without design; accidental; occasional.

10. Coming without design; casual; occasional; not intended.