とっさじゃありませんでした
咄嗟じゃありませんでした
tossajārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of とっさ

1. It was not on the spur of the moment.; It wasn't impromptu.; It wasn't sudden.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana