All nonmandatory synonyms

adjective nonmandatory

• unrestricted — confined; limited.
• elective — Related to or working by means of election.
• facultative — conferring a faculty, privilege, permission, or the power of doing or not doing something: a facultative enactment.
• leftover — Usually, leftovers. food remaining uneaten at the end of a meal, especially when saved for later use.
• obligatorily — required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
• open — not closed or barred at the time, as a doorway by a door, a window by a sash, or a gateway by a gate: to leave the windows open at night.
• optional — left to one's choice; not required or mandatory: Formal dress is optional.