Quadragenarian [adjective]

● Quadragesimal

● Quadragenarian

● Quinquagenarian

● Septuagenary

● Octogenarian

● Octogenary

● Septuagenarian

● Centenarian

● Nonagenarian

● Time of life

● Sexagenarian

● Sixty

● Forty

● Seventy

● Fifty

● Eighty

● Longevous

● Thirty

● Tricennial

● Ninety

● Twenty

● Agedly

● Grandevous

● Age

● Twentysomething

● Nineteen

● Middle age

● Oldster

● Fifteen

● Cardinal number

● Thirtysomething

● Elderish

● Vicenary

● Nonaged

● Decade

● Senectitude

● Eldern

● Octocentenary

● Eighteen

● Bimillenary

● Legal age

● One hundred one

● Yeared

● Feme sole

● Fourteen

● Agedness

● Dodderer

● Octennial

● Mental age

● Sixteen

● Ten

● Seventeen

● Twelve

● Eleven

● Thirteen

● Trieterical

● Centuriate

● Sexennial

● Sexennially

● Old

● Vetust

● Fotmal

● Ancienty

● One hundred

● Elderly

● Forold

● Senarius

● Octogamy

● Secle

● Five

● Boomer

● Civil year

● Eight

● Second childhood

● Septuplet

● Two hundred

● Year

● Historic period

● Centumviral

● Sexagenary

● Three hundred

● Novennial

● Per centum

● Decemfid

● Senile

● Novenary

● Eightsome

● Prime of life

● Hundred

● Centuple

● Baby boomer

● Triduan

● Midlife

● Decempedal

● Old growth

● Superannuate

● Adulthood

● Overlive

● Long hundred

● Septimole

● Septennially