1. to deviate from a prepared plan, speech, or set of instructions; to improvise or act unexpectedly
The actor went off-script during the live broadcast and made the audience laugh.
O ator saiu do roteiro durante a transmissão ao vivo e fez a plateia rir.
2. to act in an unpredictable or unconventional manner; to break from expected behavior
The candidate went off-script with controversial remarks at the press conference.
O candidato saiu do roteiro com observações controversas na coletiva de imprensa.