C2 adjective /ˌsɪkəˈfæntɪk/
sycophantic
お世辞
Meaning
Behaving in a way that is excessively obedient or servile to gain favor.
Example
His sycophantic behavior annoyed his colleagues.
彼のお世辞な振る舞いは同僚をうんざりさせた。