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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.
Origin
1520-1530
1520-30; in-3 + defensible
Related forms
indefensibility, indefensibleness, noun
indefensibly, adverb
Synonyms
2. vulnerable, defenseless, unprotected.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for indefensibility

indefensible

/ˌɪndɪˈfɛnsəbəl/
adjective
1.
not justifiable or excusable
2.
capable of being disagreed with; untenable
3.
incapable of defence against attack
Derived Forms
indefensibility, indefensibleness, noun
indefensibly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for indefensibility

indefensible

adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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