Unprogressive Meaning in Bengali

What is the meaning of word Unprogressive in Bengali/Bangla ?

Meaning of Unprogressive in Bangla is : অপ্রতিরোধ্য (O . p r o . t i . r o d . dh o)

Defenition of word Unprogressive

Example

the unprogressive nature of British institutions

Other Meaning of Unprogressive