well up in years

well up in years

Fairly old; advanced in age. I may be well up in years, but I can still hold my own on the race track. She was well up in years before she found a career that she loved.
See also: up, well, year
Farlex Dictionary of Idioms.

well up in years

Euph. aged; old. Jane's husband is well up in years. He is nearly seventy-five. Joan's well up in years but healthy.
See also: up, well, year
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • appear to
  • a change of heart
  • a mystery to (one)
  • be (on) the wrong side of (an age)
  • be on the right/wrong side of 40, 50, etc.
  • a woman is as old as she admits
  • admit
  • be in high spirits
  • be in high/low spirits
  • be in low spirits