sneeze at
sneeze at {v.}, {informal}
To think of as not important; not take seriously. — Used with negative or limiting words and in questions.
Mr. Jones was chosen by his party to run for President. He was not elected, but to be chosen to run is not to be sneezed at.
If you think Mrs. Green's tests are things to be sneezed at, you have a surprise coming.
Is a thousand dollars anything to sneeze at?
John finished third in a race with twenty other runners. That is nothing to sneeze at.
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Source: A Dictionary of American Idioms