Definition of "unstoppered" [unstoppered]

• (of a container) having the stopper removed (adjective)

WordNet. Princeton University. 2010.

• "Musical instruments of the forgotten days — ukukes and nose flutes, and kiokios which are likewise played with one unstoppered nostril."
• "When I came home from the airport after the business trip, Zack was asleep in bed and Chris was a fountain unstoppered."
• "Reaching into the pocket of his borrowed too-big jeans, he pulled his vial of black dust free, unstoppered it, and tapped a small portion into his palm."