Adjective undutiful has 1 sense

1. impious, undutiful - lacking due respect or dutifulness; "impious toward one's parents"; "an undutiful son"
   Antonym: respectful (indirect, via disrespectful)
   

Dictionary Definition of Undutiful

Part of Speech: Adjective

Senses

Sense 1:

Meaning: Failing in duty or responsibility; neglectful

Sample Sentence: The undutiful son refused to help his elderly parents with their daily chores.

Sense 2:

Meaning: Disrespectful or disobedient towards someone in authority

Sample Sentence: The undutiful student consistently ignored the teacher's instructions.

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