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Synonyms

youngest

American  
[yuhng-gist] / ˈyʌŋ gɪst /

adjective

  1. superlative of young.

noun

  1. a person who is the least old of a group, as the youngest member of a family.

    Their youngest is still in high school.

Etymology

Origin of youngest

First recorded before 1000; young ( def. ) + -est 1 ( def. )

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.

She says that she loves spending time with her three kids, the youngest of whom is 7.

From The Wall Street Journal • May 8, 2026

"On May 1st, Viviana aka 'Vivi' joined our family, and our hearts instantly exploded with love," Leavitt, who at 28 is the youngest White House press secretary in history, said on X.

From Barron's • May 7, 2026

The Backstreet Boys are no longer boys—the oldest, Kevin Richardson, is 54, and the youngest, Nick Carter, is 46—but they’re commanding thousands of dollars from now-grown-up fans for tickets and travel.

From The Wall Street Journal • May 6, 2026

Brighton appointed Hurzeler at the age of 31 in June 2024, making him the youngest ever full-time boss of a Premier League team.

From BBC • May 4, 2026

Cassiopeia, the youngest, had taken a Giddy-Yap, Rainbow! book from the shelf to look at the pictures and had promptly fallen asleep in the rocking chair.

From "The Interrupted Tale" by Maryrose Wood

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.