unexploded
/ʌnɛksˈplɒdɪd/Definitions
1. adjective
not exploded or detonated, especially referring to a bomb or other explosive device that has not gone off
“The bomb was safely defused, but there was still a risk from the unexploded explosive.”
2. noun
an unexploded explosive device
“The unexploded bomb was later found and removed by the military team.”