Indefensible

[in-di-fen-suh-buh l] /ˌɪn dɪˈfɛn sə bəl/

adjective
1.
not justifiable; inexcusable:
indefensible behavior.
2.
incapable of being protected or defended against attack:
an indefensible town.
3.
incapable of being defended against criticism or denial; untenable:
indefensible argument.
/ˌɪndɪˈfɛnsəbəl/
adjective
1.
not justifiable or excusable
2.
capable of being disagreed with; untenable
3.
incapable of defence against attack
adj.

1520s, from in- (1) “not, opposite of” + defensible. Related: Indefensibly.

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