millennial

1 of 2

adjective

mil·​len·​ni·​al mə-ˈle-nē-əl 

1

: of or relating to a millennium

This geopolitical specification of the millennium—this identification of the New Jerusalem with a particular place and people—was rare, even in a time of millennial fervor.

—Arthur M. Schlesinger, Jr.

2

: of, relating to , or belonging to the generation of people born in the 1980s or 1990s : of or relating to millennials

More than 60% of millennial voters support the birth control mandate.

—Katie McDonough

millennial

2 of 2

noun

: a person born in the 1980s or 1990s

—usually plural

Examples of millennial in a Sentence

Recent Examples on the Web

Adjective

As of last year, the young generation had only $6 trillion in wealth, despite making up the same percentage of the population as their baby boomer and millennial counterparts. —Sasha Rogelberg, Fortune, 8 Dec. 2025

Thus—in the most aggressively millennial kid fashion possible—was our friendship born. —Rachael O'Connor, MSNBC Newsweek, 7 Dec. 2025

Noun

In the face of that reality—the death, functionally, of the American dream—millennials, Gen Zers and Gen Alphaers have started fantasizing about the abolition of money, of technology, of progress entirely, to the point of dreaming about regressing away from humanity itself. —Hazlitt, 3 Dec. 2025

That means today’s Gen Z grads are earning significantly less than millennials did at the same stage of life. —Preston Fore, Fortune, 3 Dec. 2025

Word History

First Known Use

Adjective

1660, in the meaning defined at sense 1

Noun

1991, in the meaning defined above

Phrases Containing millennial

• multi-millennial

Rhymes for millennial

• biennial
• centennial
• decennial
• perennial
• quadrennial
• quinquennial
• triennial
• bicentennial
• sesquicentennial

Kids Definition

millennial

1 of 2 adjective

mil·​len·​ni·​al mə-ˈle-nē-əl 

: of or relating to a millennium

millennial

2 of 2 noun

: a person born in the 1980s or 1990s

—usually used in plural