Also found in: Thesaurus, Idioms.
v. un·bos·omed, un·bos·om·ing, un·bos·oms
1. To confide (one's thoughts or feelings).
2. To relieve (oneself) of troublesome thoughts or feelings.
To reveal one's thoughts or feelings.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.