[全「まった」]く~ない => Not A (at all; even a little bit) N3
Not only, Not even
[一方「いっぽう」]だ => Change A continues, A does not stop N2
Miscellaneous
[一方「いっぽう」] => On one hand A, on the other, B; Although A, at the same time, B N2
Contrast,Surprise