隠密 おんみつ行動 こうどうじゃありませんでした
ommitsu kōdōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 隠密行動

1. Was not a secret operation.; Was not done covertly.; Was not a clandestine activity.

Past/Perfective
Negative
Polite
Terminal Form