こけおどしじゃなかったです
虚仮威しじゃなかったです
kokeodoshijanakattadesu

Noun
Desu Copula
na-Adjective

The polite, past negative form of こけおどし

1. Wasn't bluffing.; Wasn't pretending.; Wasn't feigning.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana