(noun, adjective)


1. (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence

- incidental expenses

- the road will bring other incidental advantages

- extra duties incidental to the job

Similar word(s): omissible, parenthetic, parenthetical, peripheral, secondary, incident

2. not of prime or central importance

Similar word(s): inessential, unessential, accidental, nonessential

3. occurring with or following as a consequence

- snags incidental to the changeover in management

Similar word(s): subsequent, accompanying, attendant, collateral, concomitant, consequent, ensuant, resultant, sequent

Sentences with incidental as an adjective:

- That character, though colorful, is incidental to the overall plot.


1. (frequently plural) an expense not budgeted or not specified

- he requested reimbursement of $7 for incidental expenses

Definition categories: possession, expense

2. an item that is incidental

Definition categories: communication, item, point

Sentences with incidental as a noun:

- She's costing us a lot in incidentals.