1. A conclusion or judgment reached without sufficient evidence, facts, or proof to support it
The report was criticized for containing several unsubstantiated conclusions about the cause of the accident.
O relatório foi criticado por conter várias conclusões infundadas sobre a causa do acidente.
2. An assumption or belief stated as fact without adequate supporting documentation or verification
Drawing unsubstantiated conclusions from limited data can lead to incorrect decisions.
Tirar conclusões infundadas de dados limitados pode levar a decisões incorretas.