じゃありません => not to be N5
Emphasize negative meaning
~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
んじゃ => If ... then... N4
Condition (hypothetical condition)
切る => Give up, stop... N3
Happens next
じゃありませんでした => was not, were not N5
Emphasize negative meaning
切る/切れる/切れない => to do something completely to the end/unable to do; too much to finish/complete N3
そうじゃありません => Not like that, Not that way N5
Confirm
~みだりに => recklessly; indiscriminately; arbitrarily N1
Ban
んじゃない => can not, impossible to... N4
Ban
てすみません => I'm sorry for... N4
~じみる      => to become; to appear like; to look like; tainted with ~ N1
...なりなんなり... => any,anything,whatever N1
Vague