to have down as
[phrase form: have]
01
と見なす, と考える
to form an opinion, often based on general impressions or assumptions, which may or may not be correct
例
She had him down as a professional athlete because of his physique, but he was actually a mathematician.
彼女は彼の体格から彼をプロのアスリートだと思っていたが、実際には数学者だった。
