IPA: /əbˈsiːkwiəsnəs/
KK: /əbˈsiːkwiəsnəs/
The quality of being overly eager to please or serve someone, often in a way that is insincere or excessive.
His obsequiousness towards his boss made his colleagues uncomfortable.
Obsequiousness is formed from "obsequious" (from Latin "obsequiosus", meaning compliant or dutiful) and the suffix "-ness" (meaning the state or quality of). The word describes the state of being overly compliant or eager to please, often in a servile manner.
Think of being overly compliant or dutiful ('obsequious') and remember that '-ness' indicates a state or quality. This helps you remember that 'obsequiousness' refers to the quality of being excessively eager to please.