Undutiful and Unruly

Undutiful adjective - Lacking due respect or dutifulness.

Unruly and undutiful are semantically related. In some cases you can use "Unruly" instead an adjective "Undutiful".

Unruly adjective - Given to resisting authority or another's control.

Undutiful and unruly are semantically related. Sometimes you can replace term "Undutiful" with "Unruly", this adjectives are similar.