optional

adjective

Stress: first syllable

Syllables: op-tion-al (3)

English Definition

Available to be chosen but not obligatory

Example Sentence

This course is optional for the students.

US IPA /ˈɑːpʃənl/

UK IPA /ˈɒpʃənl/

voluntary elective discretionary non-compulsory

compulsory mandatory obligatory