必殺 ひっさつじゃなかったです
hissatsujanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of 必殺

1. Wasn't a finishing/decisive blow.; Wasn't a special/signature move.; Wasn't a guaranteed success.

Past/Perfective
Negative
Polite
Casual Register