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" (4 found)
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Closest matches (1)
Adjective(1 words)
Strong matches (1)
Adjective(1 words)
Related words (2)
Adjective(2 words)
Sample sentences
1 total sentences available.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.