coterminous (adj.)
- accompanying
- adjacent
- coequal
- coetaneous
- coeval
- coexistent
- coexisting
- coextensive
- coincident
- coincidental
- coinciding
- collateral
- concomitant
- concurrent
- congruent
- contemporaneous
- contemporary
- conterminous
- contiguous
- correspondent
- corresponding
- equal
- equivalent
- immediate
- isochronal
- isochronous
- joined
- juxtaposed
- neighboring
- next
- simultaneous
- synonymous
