incidental

US /ˌɪn.sɪˈden.t̬əl/
UK /ˌɪn.sɪˈden.t̬əl/
"incidental" picture
1.

incidentale, accessorio, secondario

happening as a minor accompaniment to something else

:
The discovery was incidental to their main research.
La scoperta è stata incidentale alla loro ricerca principale.
Any costs incurred will be purely incidental.
Qualsiasi costo sostenuto sarà puramente incidentale.