elective
//ɪˈlɛktɪv//
Adjective
electiveCanonical form
1
Relating to or based on selection by vote or choice.
The president holds an elective office.
2
Optional or not compulsory; chosen by the individual rather than required.
Students can take elective courses based on their interests.
3
(Of a medical procedure) Chosen by the patient rather than urgently necessary.
She decided to have elective surgery during her vacation.
Antonym
Noun
electiveSingular
electivesPlural
1
An optional course of study chosen by a student from a range of alternatives.
I chose art history as my elective this semester.