noun
flatterer; smooth talker; crafty person
A person who uses insincere praise or cunning speech to manipulate others. This word is rare and somewhat literary; in everyday conversation, terms like お世辞屋 or 口のうまい人 are more common.
彼は佞人で、上司に取り入るのが上手だ。
He is a flatterer, skilled at ingratiating himself with his boss.
あの政治家は佞人と批判された。
That politician was criticized as a smooth-talking manipulator.