incidental

(noun) (frequently plural) an expense not budgeted or not specified. Synonyms: incidental expense, minor expense. Examples: "He requested reimbursement of $7 for incidental expenses."

(noun) an item that is incidental.

(adj) (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence. Synonyms: incidental (vs. basic), incident. Examples: "Incidental expenses." "The road will bring other incidental advantages." "Extra duties incidental to the job." "Labor problems incidental to a rapid expansion." "Confusion incidental to a quick change."

(adj) not of prime or central importance. Synonyms: nonessential. Examples: "Nonessential to the integral meanings of poetry"- pubs.mla."

(adj) following or accompanying as a consequence. Synonyms: attendant, consequent, accompanying, concomitant, ensuant, resultant, sequent. Examples: "An excessive growth of bureaucracy, with attendant problems." "Snags incidental to the changeover in management." "Attendant circumstances." "The period of tension and consequent need for military preparedness." "The ensuant response to his appeal." "The resultant savings were considerable."