indefensible

indefensible /ˌɪndɪˈfɛnsəbəl/ adjective
indefensible
/ˌɪndɪˈfɛnsəbəl/
adjective
Britannica Dictionary definition of INDEFENSIBLE
[more indefensible; most indefensible]
: not defensible: such as
a  : not able to be thought of as good or acceptable
b  : not able to be kept safe from damage or harm