Synonyms for Conterminous (same or very similar meaning)
WordNet sense 1 (connecting without a break; within a common boundary):
contiguous
WordNet sense 2 (having a common boundary or edge; touching):
adjacent, adjoining, abutting, neighboring
WordNet sense 3 (joined or linked together):
connected
WordNet sense 4 (being of equal extent or scope or duration):
coextensive, coterminous
WordNet sense 5 (corresponding in size or degree or extent):
commensurate
From the ODE community, based on WordNet
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