This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Careful to fulfill obligations.

adj. Expressing or filled with a sense of obligation.

adj. Accepting of one's legal or moral obligations and willing to do them well, and without complaint.

adj. Pertaining to one's duty; demonstrative of one's sense of duty.

adj. Performing, or ready to perform, the duties required by one who has the right to claim submission, obedience, or deference; submissive to natural or legal superiors; obedient, as to parents or superiors

adj. Controlled by, proceeding from, a sense of duty; respectful; deferential.

Performing the duties required by social or legal obligations; obedient; submissive to natural or legal superiors; obediently respectful: as, a dutiful son or daughter; a dutiful ward or servant; a dutiful subject.

Expressive of a sense of duty; showing compliant respect; required by duty: as, dutiful attentions.

adj. willingly obedient out of a sense of duty and respect

"Like Mr. Hiller, Mr. O'Shea came from the Chicago Tribune, where he had been managing editor and had been known as a dutiful manager of the shrinking budgets plaguing all newspapers today."

obedient   

respectful    submissive    obedient    reverential    compliant    duteous    docile    reverent    deferential   

affectionate    obedient    respectful    unselfish    reverent    virtuous    conscientious    filial    humane    oblige