: not defensible: such as
a
: not able to be thought of as good or acceptable
The company adopted an indefensible position on the issue.
His behavior is ethically indefensible.
Slavery is morally indefensible.
b
: not able to be kept safe from damage or harm
The city is in an indefensible location.
Cite this Entry
“Indefensible.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/indefensible. Accessed 6 May. 2026.
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