[1] : The Collaborative International Dictionary of English v.0.48

elderly \eld"erly\, a.
   somewhat old; advanced beyond middle age; bordering on old
   age; as, elderly people.
   1913 webster

[2] : WordNet (r) 2.0

elderly
     adj : advanced in years; `aged' is pronounced as two syllables;
           "aged members of the society"; "elderly residents could
           remember the construction of the first skyscraper";
           "senior citizen" syn: aged, older, senior
see also:
aged older senior 

[3] : Moby Thesaurus II by Grady Ward, 1.0

51 moby thesaurus words for "elderly":
   advanced, advanced in life, advanced in years, age-old, aged,
   ageing, ageless, aging, along in years, ancient, anile, antique,
   auld, dateless, declining, decrepit, gray, gray with age,
   gray-haired, gray-headed, grey, grown old, hoar, hoary, immemorial,
   of old, of yore, old, old as methuselah, old as history,
   old as time, old-fogyish, old-time, olden, over the hill,
   patriarchal, pensioners, senectuous, senescent, senile,
   superannuated, timeless, venerable, white, white with age,
   white-bearded, white-crowned, white-haired, wrinkled, wrinkly,
   years old

Elderly >> E Words
Elderly, definition of term: Elderly
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