んじゃ => If ... then... N4
Condition (hypothetical condition)
いじょう => more than N4
Standard
じょうず => Good at N5
Ability
いじょう => that's all N4
Result
~まじき      => should not; must not N1
じゅう => everything within the area N5
Spatial relations
~をきんじえない(~を禁じ得ない) => can't help but; can't refrain from ~ N1
ひじょうに => very; extremely; exceedingly N3
Description
~あるまじき => ~ Unacceptable, not allowed N1
Ban
をはじめ => for example; starting with ~ N2
~ かろうじて => Just enough for N1
Description
じつをいうと => Frankly speaking N2
Story topic