How to Say "efficient" in Spanish
The Spanish word for “efficient” is “eficiente” — B1 level. This is a very common word in everyday Spanish.

Examples
Ella es una secretaria muy eficiente.
She is a very efficient secretary.
Necesitamos un motor más eficiente para ahorrar gasolina.
We need a more efficient engine to save gas.
El uso eficiente del tiempo es clave en este trabajo.
The efficient use of time is key in this job.
One ending for everyone
This word ends in -e, which means it stays the same for both masculine and feminine nouns. You can say 'un hombre eficiente' or 'una mujer eficiente' without changing the ending.
Eficiente vs. Eficaz
Mistake: “Using 'eficiente' when you just mean 'it works'.”
Correction: Use 'eficaz' if something achieves a result, but use 'eficiente' if it achieves that result without wasting time, money, or energy.
Related Translations
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