| Principal Translations |
| alterar⇒ vtr | (poner nervioso) | unsettle⇒, agitate⇒, fluster⇒ vtr |
| | | upset⇒ vtr |
| | Este ruido altera a cualquiera. |
| | That sound would unsettle anyone. |
| alterar vtr | (cambiar, variar) | disrupt⇒ vtr |
| | Intervenir ahora puede alterar el proceso. |
| | Stepping in right now may disrupt the process. |
| alterarse⇒ v prnl | (ponerse nervioso) | get agitated, get flustered vi + adj |
| | | be upset, be shaken v aux + adj |
| | | become upset, become flustered vi + adj |
| | Ten cuidado que se altera si le mencionas a su esposa fallecida. |
| | Be careful, he gets agitated at the mention of his deceased wife. |
| alterarse v prnl | (derecho: cambiar esencia o forma) | be altered, be modified vi + adj |
| | En caso de alterarse cualquiera de las circunstancias iniciales estipuladas en este acuerdo, se citará a las partes para rever el contrato. |
| | In the event that any of the initial conditions stipulated in the agreement are altered, the parties will be summoned in order to review the contract. |
| alterarse v prnl | (enojarse, trastornarse) (agitated) | become upset, get upset vi + adj |
| | (extremely agitated) | become angry, get angry vi + adj |
| | Sé que es un déspota pero hay que tratar de no alterarse. |
| | I know he's a tyrant, but you have to try not to get upset. |