Definition of "unloosen" [un•loos•en]

• To unloose. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Not only that, but unloosen is actually a perfectly good, old verb; so is unloose, which turns up in Shakespeare and Sheridan and Shelley."
• "He could unloosen a fly in a hotel lobby without anyone seeing."
• "I was able to unloosen my belt and then wrap it around my hand with the thick buckle dangling by my side."