quadragenarian
Person in their forties
A quadragenarian is a person in their forties.
The word is formal and relatively uncommon—most people simply say "in their forties" or "forty-something." Like its siblings (sexagenarian, octogenarian), it appears most often in writing that wants to sound precise or slightly elevated: The conference attracted quadragenarians nostalgic for their college years.
In one's fifth decade
- midlifeHalfway through adulthood
- middle-agedIn life's middle decades
- fortiethOrdinal of forty
- quinquagenarianPerson aged 50-59
sexagenarian · septuagenarian · octogenarian · nonagenarian · centenarian · thirtysomething · fiftysomething · demographic
Complete self-transformation
- menopauseEnd of fertility
- andropauseMen's midlife hormonal change
- presbyopiaAge-related near vision loss
- wisdomGood judgment from experience
stability · savings · mentorship · volunteering · wellness · reflection · reassessment · second-act
Having practical knowledge gained
- seasonedFlavored or battle-tested
- establishedFormally set up
- accomplishedHighly skilled, expert
- sophisticatedWorldly and cultured
knowledgeable · discerning · prudent · insightful · self-aware · confident · grounded · settled
forty-something
In one's fifth decade
- midlifeHalfway through adulthood
- middle-agedIn life's middle decades
- fortiethOrdinal of forty
quinquagenarian · sexagenarian · septuagenarian · octogenarian · nonagenarian · centenarian · thirtysomething · fiftysomething · demographic · cohort
reinvention
Complete self-transformation
- menopauseEnd of fertility
- andropauseMen's midlife hormonal change
- presbyopiaAge-related near vision loss
wisdom · stability · savings · mentorship · volunteering · wellness · reflection · reassessment · second-act · prioritization
experienced
Having practical knowledge gained
- seasonedFlavored or battle-tested
- establishedFormally set up
- accomplishedHighly skilled, expert
sophisticated · knowledgeable · discerning · prudent · insightful · self-aware · confident · grounded · settled · cultivated
quadragenariannonagenarian
Person aged ninety-plus
centenarian · octogenarian · septuagenarian · infant · newborn
quadragenarianyouth
State of being immature
senior citizen · baby · old-timer · young person · elder