1. To be willing to consider new ideas, opinions, or possibilities without prejudice or preconceived notions
You should keep an open mind about different cultures and perspectives.
Você deve manter a mente aberta sobre diferentes culturas e perspectivas.
2. To avoid being judgmental or closed-minded when encountering unfamiliar concepts
Even though the proposal seemed unconventional, the board decided to keep an open mind.
Embora a proposta parecesse pouco convencional, o conselho decidiu manter a mente aberta.