noncompulsory

Freely chosen participation

Noncompulsory means not required or mandatory.

A noncompulsory course is one students may take but don't have to.

Attendance at the meeting is noncompulsory.

The word appears most often in educational and administrative contexts, where distinguishing required from optional matters.

optional

optional

Not mandatory

nonmandatory · nonobligatory · unrequired · nonessential · unnecessary · permissive · unforced · nonbinding · waivable · skippable

voluntary

volunteer

Unpaid willing participant

uncoerced · self-determined · autonomous · volitional · unconstrained · self-imposed · unpressured · uncompelled · independent · self-directed

choice

alternative

Another available choice

decision · pick · determination · deliberation · consideration · evaluation · judgment · dilemma · crossroads · freedom

elective

curriculum

Educational program's content plan

credits · major · minor · specialization · concentration · tutorial · workshop · syllabus · extracurricular · enrichment

supplementary

additional

Beyond the existing amount

  • extraAdditional, beyond necessary
  • bonusReward beyond expectation
  • ancillaryProviding additional support

peripheral · secondary · complementary · add-on · incremental · auxiliary · accessory · enhancement · extension · luxury

Opposites
obligation/requirement

noncompulsorycompulsory

Required, not optional

mandatory · required · obligatory · forced · compelled

Family

compel, compulsory, compulsion, compulsive, compulsorily, noncomplying, non-compulsory

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G