RhymeZone: incidental definitions

Definitions of incidental:

noun: an item that is incidental
noun: (frequently plural) an expense not budgeted or not specified
Example: "He requested reimbursement of $7 for incidental expenses"
adjective: (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence
Example: "Incidental expenses"
adjective: not of prime or central importance
adjective: following as a consequence
Example: "Snags incidental to the changeover in management"