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Definition of indefensible
indefensible
/ˌɪndɪˈfɛnsəbəl/
in · de · fen · si · ble
Adverb:indefensibly
indefensible Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
5
indefensible Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Not justifiable by argument or moral standard; inexcusable or open to severe criticism.
Example
"The committee concluded that the executive's deliberate concealment of the safety report was morally indefensible."
2
Incapable of being protected or held against physical attack.
Example
"Situated in a low valley surrounded by high ridges, the ancient settlement proved completely indefensible."
Synonyms
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Word Origin & Etymology
First recorded in the mid-16th century, formed in English from the negative prefix 'in-' and 'defensible', which derives via Old French from Late Latin 'defensibilis', from Latin 'defendere' (to ward off, protect).
Cite this Entry
Wordmom. (2026). Definition of Indefensible. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/indefensible