unstopped

verb (used with object), un·stopped, un·stop·ping.

1. to remove the stopper from: to unstop a bottle.
2. to free from any obstruction; open: to unstop a sewer.
3. to draw out the stops of (an organ).

adjective

1. not obstructed or stopped up
2. phonetics denoting a speech sound for whose articulation the closure is not complete, as in the pronunciation of a vowel, fricative, or continuant
3. prosody (of verse) having the sense of the line carried over into the next
4. (of an organ pipe or a string on a musical instrument) not stopped

verb -stops, -stopping or -stopped (tr)

1. to remove the stop or stopper from
2. to free from any stoppage or obstruction; open
3. to draw out the stops on (an organ)