incidental

definition: following or accompanying as a consequence
example:
speech part: adjective
synonyms: attendant
definition: not of prime or central importance
example:
speech part: adjective
synonyms: nonessential
definition: (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence
example: incidental expenses
speech part: adjective
synonyms: incident
definition: an item that is incidental
example:
speech part: noun
synonyms:
definition: an expense not budgeted or not specified, frequently seen in plural form
example: They requested reimbursement of $7 for incidental expenses.
speech part: noun
synonyms: incidental expense minor expense

incidental is explained and pronounced

How incidental is being used?