A person or thing that cannot be corrected, improved, or reformed.

Relating to a proposal or idea that is impossible to change.

ऐसा प्रस्ताव या विचार जो बदलना असंभव है

English Usage: The committee dismissed his incorrigible proposition as unrealistic.

Hindi Usage: समिति ने उसके सुधार न होने योग्य प्रस्ताव को अवास्तविक बताते हुए खारिज कर दिया।