অর্থ : (of theories etc) incapable of being defended or justified.
সমার্থক : untenable
অর্থ : Not able to be protected against attack.
অর্থ : Incapable of being justified or explained.
সমার্থক : insupportable, unjustifiable, unwarrantable, unwarranted
Indefensible meaning in Bengali (Bangla).