mutant

That which has mutated, with one or more new characteristics from a mutation.

• Furthermore, it is possible that there occasionally arises what may be called a mutant of very desirable character from a eugenic point of view.
• There does seem to have been some mutation among plants[…]but in animal life where are the mutants? When or where has a new species originated in this way?

Someone or something that seems strange, abnormal, or bizarre.informal

• Your neighbor seems to be a mutant; he’s so cringy!

Synonym of mutex.

A changed version of a program, developed as part of mutation testing.

Of, relating to, undergoing (i.e. mutating), or resulting from change or mutation; that has undergone mutation.not-comparable

• mutant DNA

Strange, abnormal, or bizarre.informalnot-comparable

• Your mutant brother just growled at me again!