Thirty-something

adj, noun, num

adj, noun, num ·Rare ·Advanced level

Definitions

Noun

1
Alternative form of thirtysomething. alt-of, alternative
"Twenty- and thirty-somethings will gladly do the work you used to do, and probably for less money."
2
the time of life between 30 and 40 wordnet

Adjective

1
Alternative form of thirtysomething. alt-of, alternative, not-comparable
"What's different about Skate-N-Fun Zone this morning are the skaters, mostly thirty-something women on skates pushing strollers. Toddlers, not teenagers, circle the rink."

Numeral

1
Alternative form of thirtysomething. alt-of, alternative
"Although I can still lay claim to thirty-something, I saw a glimpse of such a grim future recently when my cat came down with the sniffles."

Synonyms

mid-thirties thirties

Example

"Twenty- and thirty-somethings will gladly do the work you used to do, and probably for less money."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.