Synonyms of indefensible in English:

indefensible


See US English definition of indefensible

See UK English definition of indefensible

See Spanish definition of inexcusable

adjective

1‘indefensible cruelty’

SYNONYMS
inexcusable, unjustifiable, unjustified, unpardonable, unforgivable, inexpiable
uncalled for, unprovoked, gratuitous, without justification, without cause, without reason, unreasonable, unnecessary
regrettable, unacceptable, unworthy, remiss, blameworthy, culpable, reprehensible, censurable, unwarrantable
excessive, immoderate, unconscionable, outrageous
ANTONYMS

justifiable, excusable

2‘an indefensible system of dual justice’

SYNONYMS
untenable, insupportable, unsustainable, unwarrantable, unwarranted, unjustifiable, unjustified, unsound, ill-founded, unfounded, groundless, baseless, flimsy, weak, shaky, flawed, faulty, defective, invalid, specious, arbitrary, implausible, absurd, illogical, irrational, preposterous, senseless, unacceptable
ANTONYMS

tenable

3‘an indefensible island’

SYNONYMS
undefendable, defenceless, undefended, unfortified, unguarded, unprotected, unshielded, unarmed, without arms, without weapons, without defences
vulnerable, exposed, assailable, open to attack, wide open, open, endangered, in danger, in peril, in jeopardy, at risk, insecure
rare pregnable
ANTONYMS

defensible, well protected