What is dubious? How to use in English

The word "dubious" comes from the Middle English word "dubious" which in turn comes from the Latin word "dubius" meaning "uncertain" or "doubtful." In Latin, the word "dubius" referred to something that is uncertain or doubtful. In Middle English, the word "dubious" was used to refer to something that is uncertain or doubtful, following the Latin usage. The word "dubious" was derived from the Middle English word "dubious" and ultimately from the Latin word "dubius." Over time, the meaning of "dubious" evolved to include any state or condition that is uncertain, doubtful, or questionable, especially when it is not expected, particularly in the context of beliefs, opinions, or arguments matters. It came to describe any state or condition that is uncertain, doubtful, or questionable in a specific context or situation, particularly in the context of beliefs, opinions, or arguments matters. Today, "dubious" is still used to describe any state or condition that is uncertain, doubtful, or questionable, especially when it is not expected, particularly in the context of beliefs, opinions, or arguments matters. In summary, the word "dubious" originated in Latin from the word "dubius," which means "uncertain" or "doubtful." Its original meaning referred to something that is uncertain or doubtful, but its meaning has since remained consistent to describe any state or condition that is uncertain, doubtful, or questionable, especially when it is not expected, particularly in the context of beliefs, opinions, or arguments matters.