D defs.my
Entry 2 senses Webster, 1913

Nonunion

/nän-yo͞on'-yən/ · Non·un·ion · IPA /nɒnˈjuːni.ən/
01 a. Not belonging to, or affiliated with, a trades union; as, a nonunion carpenter.
  1. 1.
    Not belonging to, or affiliated with, a trades union; as, a nonunion carpenter.
  2. 2.
    Not employing trade union members; not recognizing or favoring trades unions or trades-unionists; as, a nonunion contractor; a nonunion subcontractor.