disjoint

American  

[dis-joint] / dɪsˈdʒɔɪnt /

verb (used with object)

1. to separate or disconnect the joints or joinings of.

2. to put out of order; derange.

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verb (used without object)

1. to come apart.

2. to be dislocated; be out of joint.

adjective

1. Mathematics.

   1. (of two sets) having no common elements.

   2. (of a system of sets) having the property that every pair of sets is disjoint.

2. Obsolete. disjointed; out of joint.

disjoint British  

/ dɪsˈdʒɔɪnt /

verb

1. to take apart or come apart at the joints

2. (tr) to disunite or disjoin

3. to dislocate or become dislocated

4. (tr; usually passive) to end the unity, sequence, or coherence of

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adjective

1. maths (of two sets) having no members in common

2. obsolete disjointed

Etymology

Origin of disjoint

1400–50; late Middle English disjointen to destroy < Anglo-French, Old French desjoint, past participle of desjoindre to disjoin

Example Sentences

These drama kings and queens of the novel are a chameleonic joint family of disjoint motives.

From Los Angeles Times • Mar. 23, 2026

You can separate it into two disjoint pieces fairly easily: one of the pieces contains points with x coordinates less than 1/2 and one with x coordinates greater than 1/2.

From Scientific American • Jun. 20, 2015

The data are divided into disjoint sub-samples and the BDT trained on one sub-sample is applied to a different sub-sample to avoid any bias.

From Nature • May 12, 2015

How do we resolve this disjoint between a binary system that sees things only in black and white and the public’s need for an honest investigation of the shades of gray in between?

From Slate • Dec. 10, 2014

She watched him disjoint a pair of frogs’ legs.

From "Franny and Zooey" by J. D. Salinger