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

Examples
El mantenimiento preventivo del coche es fundamental.
Preventive maintenance of the car is essential.
Tomamos medidas preventivas para no enfermarnos.
We took precautionary measures so we wouldn't get sick.
El juez ordenó el arresto preventivo del sospechoso.
The judge ordered the precautionary arrest of the suspect.
Matching Gender and Number
Since this is an adjective, it must match the noun it describes. Use 'preventivo' for masculine items and 'preventiva' for feminine ones. For more than one, use 'preventivos' or 'preventivas'.
Where to put it
In Spanish, 'preventivo' usually comes after the thing it describes, like in 'chequeo preventivo' (preventive checkup).
Confusing with the verb
Mistake: “Using 'preventivo' as a verb like 'Yo preventivo el fuego'.”
Correction: Use the verb 'prevenir' for actions. Say 'Yo prevengo el fuego'.
Related Translations
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