non-optional

English

Etymology

From non- +‎ optional.

Adjective

non-optional (not comparable)

1. Alternative form of nonoptional.
   • 2020 December 2, Mark Smith, “Why fares reform is essential... and why it won't be easy”, in Rail, pages 34–35:

     BR offered discounts on round trips to encourage optional days out and weekends away, but it did not want to discount one-way tickets which were typically used for non-optional journeys.