なさそうでわありませんでした
無さそうではありませんでした
nasasōdewārimasendeshita

Desu Copula
na-Adjective

The polite, past negative form of なさそう

1. It didn't seem like there was any.; It didn't seem to exist.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana