Definition of non-unionist in US English:

non-unionist

adjective

  • That does not belong to or support a trade union.

noun

  • A person who does not belong to or support a trade union.

Origin

Mid 19th century; earliest use found in The Illustrated London News. From non- + unionist.

Pronunciation

non-unionist

/nɒnˈjuːnɪənɪst/