What is the opposite of 'traffic jam'? Is there a fixed term for it? Or we have to describe the situation? Thanks.
It is hard to say what is the opposite of a noun. Do you mean that there are almost no cars on the road? Or do you mean that there are many cars on the road, but traffic is moving freely or smoothly?
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I meant there are a fair number of cars on the roads moving smoothly. How do native speakers say this? thanks
We say "Traffic was running smoothly on I-95 today." Emotion: smile

Or just, "Traffic was really moving."

sometimes we say it was "smooth sailing" idk its a term my mom always used

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