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tr.v. un·thought (-thôt′), un·think·ing, un·thinks
To dismiss from the mind; disregard.
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.
vb (tr) , -thinks, -thinking or -thought
1. to reverse one's opinion about
2. to dispel from the mind
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Past participle: unthought
Collins English Verb Tables © HarperCollins Publishers 2011