incidental, n.
(incidentals)
an item that is incidental
<noun.communication>
incidental
semantic pointers
hypernym
(frequently plural) an expense not budgeted or not specified
<noun.possession>
incidental
incidental expense
minor expense
sample sentences
"he requested reimbursement of $7 for incidental expenses"
semantic pointers
domain of synset (usage)
hypernym