noun
small-minded person; person of little character
Used to describe someone petty, narrow-minded, or lacking in moral stature. Often contrasted with 大人物 (great person).
See also: 大人物
彼は小人物で、他人の成功を素直に喜べない。
He is a small-minded person and cannot honestly be happy for others' success.
あの政治家は大人物ではなく、小人物だという評判だ。
That politician has a reputation for being a person of little character, not a great one.