elderly

[1]	aged
[2]	the elderly , the retired , the old , senior citizens , pensioners , O.A.P.'s , old-age pensioners , golden-agers , (Colloq) old-timers , (old) geezers , (old) fogies/fogeys , (Brit) wrinklies

adj.

[1]	old , past middle age , oldish , advanced in years , of advanced age , along in years , grey , ageing , aged , venerable , hoary , ancient , senescent , decrepit , superannuated , senile , anile , (Colloq) over the hill , past it , long in the tooth , having one foot in the grave , old-fogyish/old-fogeyish
[2]	aged , older , senior