確たしかに

adverb

surely; certainly

Used to express strong conviction or agreement, often in response to a statement or when confirming something one has heard or experienced.

• 確たしかに、それは良よい考かんがえですね。

  That's certainly a good idea.

• 彼かれの言いうことは確たしかに正ただしい。

  What he says is surely correct.