frictionless

adj

1. (not-comparable)Of or pertaining to lack of friction.

   “It would last many years because of its frictionless bearings.”

   “A hard border is a real possibility, and a frictionless border is almost an oxymoron.”

   “In the decade ahead, the story must be one of increasingly frictionless travel.”

2. (not-comparable)Of a transaction or trade, without tariffs and non-tariff barriers.

   “"There can be no frictionless trade outside of the customs union and the single market," said Donald Tusk, president of the council of all 28 EU member states.”