superpolite

adjective
su·​per·​po·​lite | \ ˌsü-pər-pə-ˈlīt How to pronounce superpolite (audio) \

Definition of superpolite

: extremely polite well-raised and always superpolite She switched into superpolite mode, the one she used for difficult clients …— Kate Hardy

First Known Use of superpolite

1888, in the meaning defined above

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