1. A series of events, actions, or elements that occur in an unexpected or atypical order
The unusual sequence of events in the movie kept the audience in suspense.
A sequência inusitada de eventos no filme manteve o público em suspense.
2. An arrangement or order that deviates from what is normal or expected
The scientist discovered an unusual sequence of mutations in the DNA.
O cientista descobriu uma sequência inusitada de mutações no DNA.