Fiftysomething

noun, num, slang

noun, num, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    A person between 50 and 59 years old. colloquial, countable

    "She was a sprightly fiftysomething."

Numeral
  1. 1
    An indeterminate value between 50 (inclusive) and 60 (exclusive). colloquial

Synonyms

All synonyms
pentagenarianquinquagenarianquinquagenarianquinquagenarysemicentenarian

Example

More examples

"She was a sprightly fiftysomething."

Etymology

From fifty + -something.

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