conservative estimate

Translations
консервативная оценка
The budget was based on a conservative estimate of costs.
Бюджет был основан на консервативной оценке затрат.
Definitions
A conservative estimate is a cautious or restrained approximation of a value, often used to avoid overestimating or exaggerating potential outcomes. It typically reflects a lower or more realistic figure to ensure that expectations are not overly optimistic.
Words
estimate

noun
оценка
conservative

adjective
консервативный