undifferentiated

identical

like similar

Xerox akin allied analogous approximate associated carbon copy cognate comparable concurrent correspondent corresponding dead ringer ditto double duplicate equal equivalent even facsimile indistinguishable kindred look-alike matched matching mated parallel proportionate related resembling same same difference spitting image uniform

different dissimilar unlike

distinct diverse opposite

akin comparable corresponding related

alike consonant convertible correspondent equivalent homologous interchangeable kindred like parallel resembling uniform

alien disconnected dissimilar unlike unrelated

disagreeing disparate unalike

analogous comparable reciprocal

answering interrelated like parallel

agnate akin alike complementary consonant correlative correspondent coterminous identical kin kindred similar synonymous

dissimilar unalike unlike

different

differing disparaging mismatched

alike comparable related

agnate allied allying approximating close cognate conforming congeneric consonant corresponding double equal equaling equivalent jibing matching near parallel relating resembling same twin uniform

according to akin analogous approximative carbon-copy coextensive commensurate compatible congenerous consistent homologous identical in the manner of much the same not far from not unlike on the order of selfsame such

different dissimilar unlike

away changing divergent far inconsistent mismatched unalike unequal unfriendly variable

identical

agnate consonant correspondent ditto double equal like mated parallel same treadmill

akin analogous comparable consistent monotonous same difference selfsame similar unvaried

different dissimilar inconsistent unlike variable

changing deviating divergent unalike varied