nervous.

The Spanish word 'nervioso' translates to 'nervous' in English. It is an adjective that describes a state of feeling anxious, worried, or scared, usually due to something that is happening or might happen. This term is commonly used in both languages to convey emotional states or reactions in certain situations that may cause unease or fear. For instance, one might feel 'nervioso' before giving a public speech or during stressful situations.