mismatched

/ˈmɪsˌmæʧt/

Mismatched things don't go together — they're too unsuitable or different from each other. Your mismatched socks, one with purple stars and the other with yellow stripes, are a perfect example.

Mismatched clothing might actually work for you, if wearing a velvet gown with ratty sneakers is a deliberate part of your personal style. But mismatched people usually don't fit together so well. If you're a vegetarian night owl and your friend is a burger-loving early bird, you'll make a mismatched pair on a cross-country road trip! Mismatched is from mis-, "badly," and the Old English mæcca, "companion."

Definitions of mismatched

1. adjective

   not paired, suited, or going together well
   synonyms:

   incompatible

   not compatible

   ill-sorted, incompatible, mismated, unsuited

   not easy to combine harmoniously

   odd, unmatched, unmated, unpaired

   of the remaining member of a pair, of socks e.g.

   antonyms:

   matched

   going well together; possessing harmonizing qualities

   compatible

   able to exist and perform in harmonious or agreeable combination

   co-ordinated, coordinated, matching

   intentionally matched

   duplicate, matching, twin, twinned

   being two identical

   mated, paired

   used of gloves, socks, etc.

   one-to-one

   used of relations such that each member of one set is associated with one member of a second set
2. adjective

   (of a contest or contestants) not fairly put against each other as opponents
   synonyms: uneven

   unequal

   poorly balanced or matched in quantity or value or measure