ˈd(y)üd.]ə̇fəl, -üt], ]ēf-\ adjective
1. : filled with or motivated by a sense of duty to one's natural or legal superiors : having due respect for one's own moral obligations : willingly obedient
a dutiful son
a dutiful servant
she's a wonderfully dutiful girl. Her father's wish would be sacred to her — G.B.Shaw
2. : proceeding from or expressive of a sense of duty : deferential
the tender and dutiful manner in which she had supported her parents — W.M.Thackeray
dutiful attendance at church
• du·ti·ful·ness noun -es