Meaning & use

septuagenarian

noun, adjective·Advancedformal

Last updated

UK/ˌseptʃuədʒɪˈneəriən/
US/ˌsɛptʃuədʒəˈnɛriən/

Meanings

  1. nouncountableformal

    A person whose age is anywhere from seventy to seventy-nine.

    Grammar: Refers to a person: a septuagenarian, two septuagenarians.

    Patterns

    • a septuagenarian who ...

    The marathon's oldest finisher was a septuagenarian from Ohio.

    Our choir has several septuagenarians who never miss a rehearsal.

    Her uncle, a lively septuagenarian, still cycles to the market every morning.

  2. adjectivebefore a nounformal

    Being seventy to seventy-nine years old, or relating to someone of that age.

    Grammar: Used before a noun: a septuagenarian author.

    Patterns

    • a septuagenarian something

    The septuagenarian author published her best novel last year.

    He joined a septuagenarian hiking club after he retired.

    The septuagenarian couple celebrated fifty years of marriage.

Word forms

pluralseptuagenarians

Common combinations

a spry septuagenarian
The spry septuagenarian climbed the stairs two at a time.
a septuagenarian author
A septuagenarian author won the prize this spring.
septuagenarian parents
Many people now care for septuagenarian parents while still working.
a fit septuagenarian
The doctor described him as a fit septuagenarian with the heart of a man younger.

Synonyms and how they differ

seventy-something
Seventy-something is a casual phrase for the same age range, while septuagenarian is more formal and often used in writing.
senior citizen
Senior citizen is much broader and covers anyone of retirement age, not specifically people in their seventies.

Word family

octogenarian noun
a person in their eighties
nonagenarian noun
a person in their nineties
sexagenarian noun
a person in their sixties
centenarian noun
a person who is a hundred or older

Commonly confused: septuagenarian or octogenarian?

septuagenarian vs octogenarian

An octogenarian is in their eighties, one decade older than a septuagenarian.

Practice

Grandpa Leo turned seventy-four last month, so he is now officially a ___.

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