Also found in: Thesaurus.
Presumptuously or recklessly bold; rash or reckless: "I would never have been temerarious enough to make use of such a title on my own" (Brendan Gill). See Synonyms at reckless.
[From Latin temerārius, from temere, rashly.]
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.
1. in an audacious manner
2. obsolete in a random manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014