non-compulsory

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Non-compulsory describes something that is not required or mandated; participation or compliance is optional rather than obligatory.

The term appears most often in formal or institutional contexts, such as education or workplace policies: Attendance at the seminar is non-compulsory.

It functions as a more formal alternative to optional or voluntary.

optional

optional

Not mandatory

alternative · supplementary · additional · extra · bonus · ancillary · secondary · peripheral · add-on · accessory

voluntary

volunteer

Unpaid willing participant

freewill · self-motivated · altruistic · charitable · benevolent · philanthropic · unsolicited · selfless · contributory · donated

flexible

adjustable

Able to be changed

lenient · accommodating · forgiving · tolerant · permissive · variable · modifiable · open-ended · informal · casual

choice

preference

Favored choice among alternatives

variety · assortment · range · menu · spectrum · array · possibility · pick · freedom · latitude

elective

coursework

Student academic tasks

  • seminarGroup discussion for learning
  • moduleIndependent functional component
  • creditRecognition or payment deferral

curriculum · extracurricular · enrichment · specialization · concentration · major · minor · track · workshop · tutorial

Opposites
obligation/requirement

non-compulsorycompulsory

Required, not optional

mandatory · required · obligatory · forced · compelled

Family

noncompulsory

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