1. An observation or remark made without prior planning, study, or consideration
His unprepared observation during the meeting caught everyone by surprise.
Sua observação não preparada durante a reunião surpreendeu todos.
2. A spontaneous comment or notice made in the moment without deliberate forethought
The teacher's unprepared observation about the student's work was honest but harsh.
A observação não preparada da professora sobre o trabalho do aluno foi honesta mas dura.