How to Say "time-waster" in Spanish
The Spanish word for “time-waster” is “ladrón” — C1 level.
English → SpanishC1
NounC1informal
figurative use related to time

Examples
Esa aplicación es un ladrón de datos; consume toda mi batería.
That app is a data drain; it consumes all my battery.
¡Este proyecto es un ladrón de tiempo! No hemos avanzado nada.
This project is a time-waster! We haven't made any progress.
Metaphorical Use
In this sense, 'ladrón' describes something that secretly or unfairly takes away a resource (like time, money, or battery life), extending the idea of theft.
Related Translations
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