Synonyms of adjoining

adjoining 1 of 2

adjective

ə-ˈjȯi-niŋ 

as in adjacent

having a border in common

the cows had broken through the fence and were grazing in the adjoining field

Synonyms & Similar Words

• adjacent
• neighboring
• closest
• contiguous
• bordering
• abutting
• joining
• flanking
• attached
• united
• juxtaposed
• conterminous
• fringing
• nearby
• nearest
• close
• touching
• linked
• connecting
• connected
• near
• surrounding
• flush
• next-door
• skirting
• verging
• joined
• communicating
• approximate
• fencing
• encircling
• immediate
• peripheral
• marginal
• enclosing
• bounding
• nigh
• embracing
• interconnecting
• circumjacent
• tangential
• ambient
• encompassing
• tangent
• rimming

Antonyms & Near Antonyms

• noncontiguous
• separate
• nonadjacent
• apart
• isolated
• single
• discrete
• detached
• unconnected
• free-standing
• distant
• unattached
• isolate
• unlinked
• disconnected
• remote
• removed
• farthest
• far
• away
• divided
• discontinuous
• split
• severed
• resolved
• noncontinuous
• far-off
• broken up
• parted
• faraway
• uncoupled
• dissociated
• divorced
• ramified
• disunited
• disjoined
• sundered
• dissevered
• unyoked

adjoining

2 of 2

verb

present participle of adjoin

1

as in neighboring

to be adjacent to

the bedroom of their apartment adjoins their neighbor's living room

Synonyms & Similar Words

• neighboring
• flanking
• joining
• surrounding
• touching
• abutting
• marching (with)
• skirting
• bordering (on)
• verging (on)
• lining
• fringing
• butting (on or against)
• meeting
• connecting (with)
• attaching (to)
• communicating (with)
• linking (with)
• enclosing
• bounding
• encircling
• contacting
• converging
• embracing
• fencing
• rimming
• margining

2

as in adding

to join (something) to a mass, quantity, or number so as to bring about an overall increase

after the dictionary writer's talk, the principal adjoined a few remarks about her own love of words

Synonyms & Similar Words

• adding
• annexing
• appending
• expanding
• introducing
• tacking (on)
• attaching
• subjoining
• affixing
• inserting
• increasing
• augmenting
• extending
• enlarging
• tying
• injecting
• grafting
• fastening
• supplying
• multiplying
• complementing
• enhancing
• infusing
• escalating
• lengthening
• amplifying
• reinforcing
• compounding
• elongating
• swelling (up)
• intensifying
• supplementing
• prolonging
• tagging
• fixing
• heightening
• enforcing
• hitching
• interfusing
• strengthening
• boosting
• protracting
• maximizing
• magnifying
• raising
• aggrandizing
• beefing (up)

Antonyms & Near Antonyms

• removing
• separating
• deducting
• subtracting
• taking off
• detaching
• disconnecting
• cutting
• knocking off
• reducing
• severing
• abating
• decreasing
• excising
• contracting
• diminishing
• lowering
• bating
• lessening
• disjoining
• curtailing
• shortening
• unfastening
• amputating
• abridging
• condensing
• cutting back
• compressing
• lopping (off)
• constricting
• abbreviating
• retrenching

Synonym Chooser

How is the word adjoining different from other adjectives like it?

Some common synonyms of adjoining are adjacent, contiguous, and juxtaposed. While all these words mean "being in close proximity," adjoining definitely implies meeting and touching at some point or line.

had adjoining rooms at the hotel

Where would adjacent be a reasonable alternative to adjoining?

While in some cases nearly identical to adjoining, adjacent may or may not imply contact but always implies absence of anything of the same kind in between.

a house with an adjacent garage

When is contiguous a more appropriate choice than adjoining?

While the synonyms contiguous and adjoining are close in meaning, contiguous implies having contact on all or most of one side.

offices in all 48 contiguous states

When might juxtaposed be a better fit than adjoining?

In some situations, the words juxtaposed and adjoining are roughly equivalent. However, juxtaposed means placed side by side especially so as to permit comparison and contrast.

a skyscraper juxtaposed to a church

Example Sentences

Recent Examples of adjoining

Adjective

The fire spread to an adjoining unit, which firefighters tackled with additional hose lines. —Kansas City Star, 15 Jan. 2026

The original diamond—built specifically for the 1989 movie using two adjoining farms and preserved exactly as seen on screen—remains the heart of the attraction, but a sparkling new pro ballpark and adjacent museum are set to open by mid-June. —Taryn Shorr-McKee, Midwest Living, 11 Jan. 2026

Verb

Coca cultivation has spread from remote mountainous areas into Peru’s lowlands, a huge stretch of land adjoining Brazil and Colombia, where new variants thrive. —Tim Lister, CNN Money, 22 Nov. 2025

Ladd, Laura and Bruce also all have adjoining stars on the Hollywood Walk of Fame. —Lynsey Eidell, PEOPLE, 3 Nov. 2025