noun
realist
A person who sees and accepts situations as they are, without idealization or wishful thinking. Common in everyday conversation and writing.
彼はリアリストだから、夢ばかり追わない。
He's a realist, so he doesn't just chase dreams.
理想論より、リアリストの意見が聞きたい。
I'd rather hear a realist's opinion than idealistic theories.