4-F
Americannoun
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a U.S. Selective Service classification designating a person considered physically, psychologically, or morally unfit for military duty.
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a person so classified.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
That exercise led to the discovery that a compound termed 4-F, 5-MeO-PyrT was the most 5-HT1A-selective compound in this series.
From Science Daily • May 8, 2024
He’d recently been in a motorcycle accident that resulted in a concussion, and the Army declared him 4-F.
From Los Angeles Times • Nov. 17, 2021
In 1972, his status changed to 4-F – a permanent disqualification.
From Salon • Feb. 27, 2019
By John Strege Robert Tyre Jones Jr., 40, married, the father of two, 4-F, could have served his country during World War II from the home front.
From Golf Digest • Oct. 16, 2013
Pretty soon, stripped to my shorts, 1 was making my eager-to-join comments in the medical examination rooms—and everybody in the white coats that I saw had 4-F in his eyes.
From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.