smarty-pants


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smar·ty-pants

(smär′tē-pănts′)
pl.n. (used with a sing. verb) Informal
A smart aleck.
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.

smarty-pants

(ˈsmɑːtɪˌpænts) or

smarty-boots

n
(functioning as singular) informal a would-be clever person
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

smart′ al`eck

(or al`ec)

(ˈæl ɪk)
n. Informal.
an obnoxiously conceited and impertinent person.
[1860–65, Amer.; generic use of Aleck, nickname for Alexander]
smart′-al`eck•y, smart′-al`eck, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:

smarty-pants

noun
Informal. One who is obnoxiously self-assertive and arrogant:
malapert, witling.
Informal: know-it-all, saucebox, smart aleck, smarty, wisenheimer.
Slang: wiseacre, wisecracker, wise guy.
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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