in fact; as a matter of fact; actually; in reality; to tell the truth
見た目は複雑だが、実際は単純な構造だ。
It looks complex, but in reality the structure is simple.
うわさと違い、実際はとても穏やかな人だった。
Contrary to rumors, he turned out to be a very calm person in reality.
計画は完璧に見えたが、実際は多くの問題を抱えていた。
The plan looked perfect, but in reality it had many problems.