まったく

The word まったく can have different meanings depending on how it's used in a sentence. In affirmative sentences, it's used to add emphasis, as in "totally", "completely", "entirely", or "extremely." In negative sentences, it's used to indicate complete negation, as in "not at all." In the construct まったく～わけじゃない, it's used for partial negation, as in "it's not that it's completely..."

このレポートはまったくだめだ。もう一度、書き直した方がいいと思う。
This report is completely awful. I think you should rewrite it again.

このカレーは辛すぎて、まったく食べられない。
This curry is too spicy, I can't eat it at all.

あの映画はまったく面白くなかった。時間のムダだった。
That movie wasn't interesting at all. It was a waste of time.

その人のことをまったく知らないというわけではないが、あまり話したことはない。
It's not that I completely don't know that person, but we haven't talked very much.