wiseacre

n. Slang
A person regarded as being disagreeably egotistical and self-assured.

[Alteration by folk etymology from Middle Dutch wijsseggher, soothsayer, translation of Middle High German wīssage, from Old High German wīssago, seer, alteration (influenced by forasago, sayer beforehand, prophet) of wīzago, from wīzag, knowledgeable.]

(WIZ-ay-kuhr)

noun
One who obnoxiously pretends to be wise; smart-aleck; wise-guy.

Etymology
From Middle Dutch wijsseggher, soothsayer, translation of Middle High German wissage, from Old High German wissago, wise person, altered by folk etymology.

Usage
"Mr. Mahoney, the wiseacre dad on NBC's `Frasier,' here has the chance to play gruff and sarcastic until late in the play, when a lifetime of artifice crumbles and his guilt and pain are exposed." — Joel Henning, Theater: Artifice Unmasked; Chekhov Cluttered, The Wall Street Journal (New York), Jun 5, 2001.

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noun

One who is obnoxiously self-assertive and arrogant: malapert, witling. Informal know-it-all, saucebox, smart aleck, smarty, smarty-pants, wisenheimer. Slang wisecracker, wise guy. See good/bad.

Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: an upstart who makes conceited, sardonic, insolent comments
  Synonyms: wise guy, smart aleck, wisenheimer, weisenheimer

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Dansk (Danish)
n. - selvklog dumrian

Nederlands (Dutch)
eigenwijs

Français (French)
n. - puits de science

Deutsch (German)
n. - Klugschwätzer

Ελληνική (Greek)
n. - εξυπνάκιας

Italiano (Italian)
sapientone

Português (Portuguese)
n. - pretensioso (m)

Русский (Russian)
умник, всезнайка

Español (Spanish)
n. - sabihondo, sabelotodo

Svenska (Swedish)
n. - besserwisser, snusförnuftig person

中文（简体）(Chinese (Simplified))
自以为聪明者, 自以为懂事的人

中文（繁體）(Chinese (Traditional))
n. - 自以為聰明者, 自以為懂事的人

한국어 (Korean)
n. - 짐짓 아는 체하는 사람, 지자연하는 사람

日本語 (Japanese)
n. - 知者ぶる人, 学者

العربيه (Arabic)
‏(الاسم) متفلسف, المتعالم, المغرور إلى حد بغيض‏

עברית (Hebrew)
n. - ‮חכם גדול, חכם בלילה‬

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