1. [adjective] Loosely associated; existing as a byproduct, tangent, or accident.
2. [adjective] Entering or approaching, prior to reflection (more frequently incident).
3. [noun] Incidental expense.
4. [noun] (frequently plural) an expense not budgeted or not specified; 'he requested reimbursement of $7 for incidental expenses'.
5. [noun] An item that is incidental.
6. [adjective] (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'; 'labor problems incidental to a rapid expansion'; 'confusion incidental to a quick change'.
7. [adjective] Not of prime or central importance; 'nonessential to the integral meanings of poetry'- Pubs.MLA.
8. [adjective] Following or accompanying as a consequence; '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'.
