Word family noun defence/defense defendant defender defensiveness adjective defenceless/defenseless defensible ≠ indefensible defensive verb defend adverb defensibly ≠ indefensibly defensively
From Longman Dictionary of Contemporary Englishindefensiblein‧de‧fen‧si‧ble /ˌɪndɪˈfensəbəl◂/ adjective 1 BAD BEHAVIOUR OR ACTIONStoo bad to be excused or defended The law is morally indefensible and in need of reform.2 PMimpossible or very difficult to defend from military attack —indefensibly adverbExamples from the Corpus
indefensible• For a side that prides itself on its parsimonious nature, the case for the defence was frankly indefensible.• If the hearings uncover some incontrovertible evidence of corruption he could look like a defender of the indefensible.• The first proposal struck us as scientifically dubious, and the second as intellectually indefensible.• There is no advantage to be gained by Opposition Members seeking to defend the indefensible.• Valdez knew the score -- the deal was indefensible.• We are forced to defend a system we know to be indefensible.• If you came across a child drowning in a pond, then it would be indefensible not to act.• It is indefensible that in such a rich country so many people are poor. 