unejected
/juːˈnɛkˌtɛd/ or /juːˈnɛktɪd/Definitions
1. adjective
Not ejected or expelled; remaining or staying in place.
“The unejected gas particles caused the pressure build-up.”
2. noun
Something that remains unejected or is not expelled.
“The unejected material was a major concern in the experiment.”