look down on

look down on idiom
Also, look down one's nose at. Regard with contempt or condescension, consider oneself superior to. For example, When it comes to baking, Beth is a purist—she looks down on anyone who uses a mix, or Seniors have a way of looking down their noses at juniors. The first expression dates from about 1700, the second from about 1900.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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