undefensible

Example:Her desperate plea for help was seen as an undefensible position given the situation.

Definition:an opinion or belief that is not able to be supported or defended effectively.

Example:His argument that global warming is a natural phenomenon is seen as an undefensible position by most scientists.

Definition:a statement or set of statements intended to support or justify a point of view that is not able to be supported or defended effectively.

Example:The legal team's defense of the accused was so weak it was considered an undefensible effort.

Definition:the act of defending someone or something, here used to refer to failing to provide a convincing defense for something that is not able to be supported or justified.