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.
Source: wiktionary
Non-optional
Synonyms for "non-optional" (3 found)
Ranked by relevance and common usage.
Closest matches (1)
Adjective(1 words)
Strong matches (1)
Adjective(1 words)
compulsory labor
Related words (1)
Adjective(1 words)
mandatory clause
Sample sentences
1 total sentences available.