She had worked in the medical industry while Zydrunas was playing in NBA arenas ... and according to her obit, "She always had ideas for growth and the never-ending desire to achieve more."
"She truly enjoyed working and being a leader who led by example," her family and friends wrote in the obituary. "She cared deeply about everyone she employed, and her door was always open to those who needed to talk. She was generous with her time, finances and counsel."
Jennifer and Zydrunas had two sons. Her funeral is scheduled for Sept. 17.
The former basketball player -- whose jersey was retired by the Cavaliers in 2014 -- has yet to publicly comment on the loss.