obsequiously
adverbUK /əbˈsiːkwiəsli/
US /əbˈsiːkwiəsli/
In a way that is too eager to please someone.
He obsequiously agreed with everything the boss said.
OTHER MEANINGS
2. In a manner showing excessive willingness to obey or serve.
The waiter bowed obsequiously as he led them to their table.
3. With an overly attentive and compliant attitude.
She obsequiously praised the judge's every remark.
4. In a way that seeks favor through flattery and submission.
The assistant obsequiously laughed at jokes that weren't funny.