1. quadragenarian - Noun
2. quadragenarian - Adjective
quadragenarian (plural quadragenarians)
Synonym of fortysomething: a person between 40 and 49 years old.
quadragenarian (not comparable)
Of or related to fortysomethings.
Coordinate terms: vicenarian, tricenarian, quinquagenarian, semicentenarian, hexagenerian, sexagenarian, septuagenarian, octogenarian, nonagenarian, centenarian, supercentenarian