colossal failure

Translations
колоссальная неудача
The project was a colossal failure due to poor planning.
Проект был колоссальной неудачей из-за плохого планирования.
Definitions
A colossal failure refers to a significant and overwhelming lack of success or achievement, often resulting in severe consequences or disappointment.
Words
failure

noun
неудача
colossal

adjective
колоссальный