Definitions for: Sexagenarian

[n] someone whose age is in the sixties
[adj] being from 60 to 69 years old; "the sexagenarian population is growing"

Webster (1913) Definition: Sex`a*ge*na"ri*an, n. [See Sexagenary.]
A person who is sixty years old.

Synonyms: old

See Also: old person, oldster, senior citizen