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

• Lexulous
• Wordscraper
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adj. Marked by or exhibiting deference.

adj. respectful and considerate; showing deference

adj. of, or relating to the vas deferens

adj. Expressing deference; accustomed to defer.

Expressing or characterized by deference; respectful in manner.

In anatomy, conveying away or carrying off; specifically, pertaining to the vas deferens, or deferent duct of the testes.

adj. showing deference

"The word deferential seems like a negative for me, as though she was telling me I was passive, too quiet or not as strong as other supervisors."

respectful   

complaisant   

submissive    obeisant    regardful   

confidential    consequential    credential    differential    essential    existential    experiential    exponential    inconsequential    inferential   

respectful    attentive    apologetic    reverent    affable    considerate    submissive    conciliatory    obsequious    courtly