~きわまる/きわまりない(~極まる/極まりない)      => extremely; very ~ N1
一通り => Basically, (get) over, done N2
Base, base
あまり~ない => Not very ~ N5
Amount
あまり~ない => not very, not much ~ N5
一口に…といっても => Although in general... N2
Evaluate
あまりに(も)~と / あんまりに(も)~と => too much; so much… that; excessively ~ N3
Extreme level
あまりに (も) => too much; so much… N3
Extreme level
一緒に => together N5
たりとも~ない => not even; not any ~ N1
..... ばかりもいられない => can't keep doing ~ N2
Speculation
てもかまわない => it doesn't matter ... N4
Allow
てもかまわない => it doesn't matter ... N4
Concession