~ににあわず (に似合わず ) => ~Different from N1
Evaluate
~きわみ => the utmost N1
Limit, limit
~はいわずもがなだ      => need not to say N1
いずれにせよ => anyway N2
Situation
つきましては => about; concerning; regarding N2
Cause, reason
[極「きわ」]み/[極「きわ」]まりない => Extremely A N1
Degree/ Level/Amount
抜きにして/ 抜きにしては~れない => without; leaving out; cutting out ~ N2
わずかに => slightly; only; barely; narrowly ~ N2
... を抜きにしては => If it weren't for… N2
Confirm
... はずみ.... => So N2
Result
~きわまる/きわまりない(~極まる/極まりない)      => extremely; very ~ N1
わずか => only, merely, (a) little, small quantity N3
More or less in quantity