indefensible

definition: so horrible and distasteful to people that it's incapable of being justified or explained
example: The way you treated them was absolutely indefensible.
speech part: adjective
synonyms: insupportable unjustifiable unwarrantable unwarranted
definition: incapable of being logically explained as a concept or idea
example: The theory was indefensible, and was quickly dismissed by the scientific community.
speech part: adjective
synonyms: untenable
definition: not able to be protected against a literal attack
example: The lack of a natural barrier made the city almost indefensible.
speech part: adjective
synonyms:

How indefensible is being used?