Antonyms of adj undutiful

1 sense of undutiful

Sense 1
impious, undutiful -- (lacking due respect or dutifulness; "impious toward one's parents"; "an undutiful son")

INDIRECT (VIA disrespectful) -> respectful -- (full of or exhibiting respect; "respectful behavior"; "a respectful glance")

Similarity of adj undutiful

1 sense of undutiful

Sense 1
impious, undutiful -- (lacking due respect or dutifulness; "impious toward one's parents"; "an undutiful son")
       => disrespectful (vs. respectful) -- (exhibiting lack of respect; rude and discourteous; "remarks disrespectful of the law"; "disrespectful in the presence of his parents"; "disrespectful toward his teacher")