Synonyms of noncompulsory
- 1 Syllable
- free
- 2 Syllables
- open, extra
- 3 Syllables
- optional, unneeded, unforced
- 4 Syllables
- unrequired, inessential, volitional, unrestricted, voluntary, arbitrary, elective, discretional
- 5 Syllables
- unnecessary, alternative, facultative, discretionary
- 6 Syllables
- nonobligatory