fortyish /ˈfɔː(ɹ).ti.ɪʃ/adjective 2number 1 adjective2 •Close to the number forty •About forty years old.I’m going to start a support group of us fortyish guys with this problem. LUMPS, we’ll call our group. Losing Unwanted Midriff Plumpitude Sensibly. — 1994 number1 •Any number close to forty.One problem it drops in our laps is to have developed all fortyish of its species within our temperate area, from the Falklands to the central temperate Andes. — 1993