事前 じぜん予約 よやく不要 ふようではありませんでした
jizen'yoyaku fuyōdewārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 事前予約不要

1. Was not unnecessary to make a prior reservation.; Was not possible without a prior reservation.

Past/Perfective
Negative
Polite
Formal Register