mismate

mis·mate  (ms-mt)

tr.v. mis·mat·ed, mis·mat·ing, mis·mates

To mate or match unsuitably.

Thesaurus

Verb

1.

mismate - provide with an unsuitable mate couple, mate, pair, twin, match - bring two objects, ideas, or people together; "This fact is coupled to the other one"; "Matchmaker, can you match my daughter with a nice young man?"; "The student was paired with a partner for collaboration on the project"