The preferred term is Roma or Romany, which refers to the Romani people.
While there isn't a direct Gaelic equivalent for "gypsy," here are some ways to refer to the Romani people in Gaelic:
* Romáinigh (plural) - This is the Gaelic word for "Romani people."
* Románach (singular) - This means "Romani person."
* Treabh na Rómha - This translates to "The Tribe of Rome," a historical reference to the Romani people's origins.
It's always best to use respectful and accurate language when discussing any ethnic group.