lack of self-reflection; lack of introspection; unreflective
Refers to a state or attitude of not examining one's own actions, failures, or inner self. Often used in critical or psychological contexts.
I'm amazed at his unreflective attitude.
To learn from failure, you must not be unreflective.
内省 is a more formal term for introspection, often used in psychology. 無反省 is broader and more common in everyday criticism.
Compound of 無 (mu, 'without') and 反省 (hansei, 'self-reflection'). The exact historical derivation is uncertain, but the word follows a common pattern of negation.