Translation of "Unsuspecting" in Spanish

Upon two completely unsuspecting cities, Apollonia and Oricum.

a dos ciudades desprevenidas, Apollonia y Oricum.

That would lie in wait on the seabed to trap unsuspecting divers.

que esperaban a los buceadores en el fondo del mar, para sorprenderlos.

The left wing of his attack column fell upon the unsuspecting Pompeians and managed to

El ala izquierda de su columna de ataque se echó sobre los pompeyanos desprevenidos y logró