たいまいじゃなかったです
玳瑁じゃなかったです
taimaijanakattadesu

Noun
Desu Copula

The polite, past negative form of たいまい

1. Wasn't tortoiseshell.; Wasn't a tortoiseshell (item).

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana