commensurate
aligned
analogous
coequal
coextending
coincident
coincidental
coinciding
collateral
concurrent
congruent
correspondent
corresponding
coterminous
equal
equidistant
equispaced
equivalent
even
lined up
nonconvergent
nondivergent
parallel
parallelepipedal
parallelinervate
paralleling
parallelodrome
parallelogrammatic
parallelogrammic
parallelotropic
synonymous
extensive
bloggy
bluish-green
coeternal
doseresponse
einsteinian
ha-ha
harbour-master
levant
melty
mind-body
monster-stomping
neoconservative
non-euclidean
shap
space-time
supposed
time-space
treasurable
wondrous