expensive mistake

Translations
дорогая ошибка
Buying that car was an expensive mistake.
Покупка той машины была дорогой ошибкой.
Definitions
An expensive mistake refers to an error or misjudgment that results in significant financial loss or cost, often due to poor decision-making, lack of foresight, or inadequate planning.
Words
expensive

adjective
дорогая
mistake

noun
ошибка