non-union 
adjective
Not belonging or relating to a trade union: non-union agreements...
- Management personnel and non-union workers are being used to keep the airport running.
- Two thirds of these are reported to be on individual, non-union workplace agreements.
- Wages rise under the pressure of union drives, especially among non-union workers.
- labour class
- labour coach
- labour colony
- labour content
- labour cost
- Labour Day
- Labour Day Weekend
- laboured
- labourer
- labourer in trust
- labouress
- labour exchange
- labour force
- Labour government
- labour hero
- labour heroine
- labour house
- labouring class
- labouringly
- labouring oar
- labouring time
- labour-intensive
- labourism
- labourist
- labouristic