not (ready) infectious

Your type of cold is not infectious.

Your type of cold is not really infectious.

Is there any difference in meaning between the two sentences?

Many thanks.

Hi Tanquatlay

I think there is some distinct difference between the two. The first sentence clearly indicates that the cold is not contagious.

However, the second sentence could mean two things:

  1. The cold is contagious, but not extremely contagious.
  2. It’s probably not contagious, but there’s a small chance it could be.

Either way, your second sentence leaves the possibility that the cold might be contagious/infectious, where sentence #1 clearly indicates there is no danger of it being so.