1 adjective also PSYCH, offensive developmentallyfaoi mhíchumas meabhrachfaoi bhac meabhrach c m umallintinneach offensive adj1 c m uretarded growthfás moillithe2 adjective informal, offensive stupidshe must think I'm retardedcaithfidh sé go síleann sí gur dobhrán mé, caithfidh go gceapann sí gur pleota méthis is the most retarded film I've ever seenseo an scannán is bómánta dá bhfaca mé riamh