disjoint
Americanverb (used with object)
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to separate or disconnect the joints or joinings of.
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to put out of order; derange.
verb (used without object)
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to come apart.
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to be dislocated; be out of joint.
adjective
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Mathematics.
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(of two sets) having no common elements.
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(of a system of sets) having the property that every pair of sets is disjoint.
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Obsolete. disjointed; out of joint.
verb
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to take apart or come apart at the joints
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(tr) to disunite or disjoin
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to dislocate or become dislocated
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(tr; usually passive) to end the unity, sequence, or coherence of
adjective
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maths (of two sets) having no members in common
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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
Vocabulary lists containing disjoint
"The Tragedy of Macbeth," Vocabulary from Act 3
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Vocabulary Video Contest (2013) - List 2
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2014 Vocabulary Video Contest (A-L)
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These drama kings and queens of the novel are a chameleonic joint family of disjoint motives.
From Los Angeles Times • Mar. 23, 2026
There are many different ways to construct the disjoint union using the axioms of set theory, which will not produce exactly the same set but will, necessarily, produce isomorphic ones.
From Scientific American • Sep. 14, 2021
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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
