Find Antonyms

union Antonyms

Opposite of union

Because the opposite of union shifts with each meaning, the 16 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• noun (Context 1)

In mathematics, the set containing all elements that belong to at least one of two or more given sets.

Usage Example

"Students were asked to shade the Venn diagram to represent the intersection of Set A and Set B."

Strongest
intersection

• noun (Context 2)

A political federation or league of states or nations, or the state of harmony and agreement within a group.

Usage Example

"The delegates worked tirelessly to preserve the fragile disunion among the allied provinces."

Strongest
disunion
disunity
secession
discord
disharmony
Strong
schism
division
fragmentation

• noun (Context 3)

The action or fact of joining or being joined together, especially in a political, institutional, or marital context.

Usage Example

"The treaty established a lasting economic separation between the neighboring nations."

Strongest
separation
division
dissolution
divorce
disunion
split
Strong
parting
severance
breakup

Similar words to union

Words similar to union shift depending on context. Common synonyms include:

trade union
labor union
unification
federation
amalgamation
merger
unity
marriage
See all synonyms of union

• Nearby Words

uninviting
uninvolved
uninvolving
union
union falls
unionism
unionist

Cite this Entry

Wordmom. (2026). Antonyms for Union. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/union
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