There are two places you're most likely to find intersections: in math class(Discrete Math Concept) and in traffic. In math, an intersection is the spot where two lines cross. Those lines share this common point. The center of the letter X is an intersection. The same is true for streets.

What are the near antonyms of intersection for a math and traffic concepts?

I think the antonym will describe something "out of intersection" or those not intersect with the referenced "thing".

Is there a word suitable as an antonym to intersection ?

The closest word I found was "disjoint", "disjointed".


"Antonyms are only significant when it is a binary word. Antonym is a binary concept. And two non-intersecting lines are parallel only in Euclidean plane geometry; not in solid geometry, and not in non-Euclidean geometry. There is no simple antonym without an equally simple context, which must be presupposed."

Yes, it seems even something dummy(to not say stupid) try to get a word(or words) with the opposite meaning of a non-binary word, who would want to set a non-apple?

The objective of my question is to find some word to clear (self explanatory) give a name for a program method to get an object that doesn't intersect this thing.

I'm just looking forward to find another word to represent "non-intersection".

  • Antonyms are only meaningful when there is a single dimension for contrast, as in cold/hot, where temperature is the only relevant variable, and the antonyms have opposite values for it. Which dimension of intersection do you want to reverse its sign? Aug 3 '16 at 14:29
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    I don't get the connection of the antonym-of-intersection and the-inability-for-humanity-to-improve-the-world. Can you elaborate on that metaphor?
    – Dan Bron
    Aug 3 '16 at 14:30
  • @JohnLawler I understand that antonyms are more significant when it is a binary word, but I think the antonym will describe something "out of intersection" or those not intersect with the referenced "thing". Aug 3 '16 at 14:48
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    This is yet another question asking for an antonym of a non-binary concept. One might as well ask what the opposite of an apple is. It's a non-apple. Just like you're asking about a non-intersection. There are hundreds, if not thousands, of things one can dream up that are not intersections. Non of these makes someone think about intersections, in the sense that they think "it's the opposite of an intersection". In mathematics, two lines that do not intersect are by definition parallel. Two objects that do not intersect are non-intersecting. As for roads, there simply is no intersection.
    – oerkelens
    Aug 3 '16 at 14:57
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    I'm voting to close this question as off-topic because naming requests are off-topic.
    – Mazura
    Aug 3 '16 at 21:15

This is not a single word, but in mathematics, conceptually you are after the symmetric difference:

In mathematics, the symmetric difference, also known as the disjunctive union, of two sets is the set of elements which are in either of the sets and not in their intersection.

The reference article provides a nice illustration:

enter image description here

For traffic or roads, I thought about roundabout, which is a way to get to a cross street without a direct intersection, or a track, which is a closed circuit used for racing, thus theoretically lacks an intersection.

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