1. (frequently plural) an expense not budgeted or not specified; - Example: "he requested reimbursement of $7 for incidental expenses" [syn: incidental expense, incidental, minor expense]
WordNet (r) 3.0 (2006):
incidental expense
n 1: (frequently plural) an expense not budgeted or not
specified; "he requested reimbursement of $7 for incidental
expenses" [syn: incidental expense, incidental, minor
expense]