conterminous
adjective
con·ter·mi·nous kən-ˈtər-mə-nəs 
kän-
1
: having a common boundary
conterminous countries
2
: coterminous
3
: enclosed within one common boundary
the 48 conterminous states
conterminously adverb
Synonyms
- abutting
- adjacent
- adjoining
- bordering
- contiguous
- flanking
- flush
- fringing
- joining
- juxtaposed
- neighboring
- skirting
- touching
- verging
See all Synonyms & Antonyms 
Example Sentences
for two nations that are conterminous from the Atlantic to the Pacific, the U.S. and Canada have had remarkably little strife the county and the school district are conterminous
Word History
Etymology
Latin conterminus (from con- con- + -terminus, adjective derivative of terminus "boundary marker, limit") + -ous — more at term entry 1
First Known Use
1631, in the meaning defined at sense 1
conterminous
adjective
1
as in adjacent
having a border in common for two nations that are conterminous from the Atlantic to the Pacific, the U.S. and Canada have had remarkably little strife Synonyms & Similar Words
Relevance
- adjacent
- adjoining
- neighboring
- bordering
- contiguous
- united
- abutting
- closest
- juxtaposed
- skirting
- verging
- flanking
- touching
- attached
- fringing
- joining
- surrounding
- nearest
- close
- connected
- linked
- fencing
- connecting
- near
- flush
- nigh
- approximate
- communicating
- nearby
- enclosing
- encircling
- bounding
- circumjacent
- encompassing
- interconnecting
- marginal
- embracing
- peripheral
- joined
- immediate
- tangential
- next-door
- tangent
- inclosing
- ambient
- rimming
Antonyms & Near Antonyms
- noncontiguous
- discrete
- nonadjacent
- apart
- separate
- unconnected
- single
- isolated
- detached
- unattached
- distant
- farthest
- disconnected
- isolate
- remote
- discontinuous
- removed
- unlinked
- far
- noncontinuous
- divided
- faraway
- dissevered
- away
- sundered
- resolved
- disunited
- severed
- disjoined
- split
- far-off
- broken up
- ramified
- free-standing
- divorced
- dissociated
- parted
- uncoupled
- unyoked
2
as in coinciding
occupying the same space the county and the school district are conterminous Synonyms & Similar Words
- coinciding
- underlying
- overlapping
- coincident
- intersecting
- coterminous
- coextensive
- concurrent
- superimposed
- superposed
- overlaying
- crisscrossing
- convergent
- congruent
- allover
- conjoining
- coaxial
- conjunctional
Antonyms & Near Antonyms
- nonconcurrent
- noncongruent