undutiful
Speech parts
1. undutiful - Adjective
2. undutiful - Adjective Satellite
Meaning
lacking due respect or dutifulness
Source: WordNetSynonyms
impious
naughty
fallen
incorrect
immoral
sinful
lapsed
careless
unfaithful
profane
defiant
irreverent
disloyal
blasphemous
disrespectful
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Antonyms
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impious toward one's parents
an undutiful son