Nonparallel
Part of speech: adjective
Definition: not parallel
Serial
Part of speech: adjective
Definition: Having to do with or arranged in a series.Published or produced in installments.
Part of speech: noun
Definition: A work, as a work of fiction, published in installments, often numbered and without a specified end.A serial number required to activate software.
Example sentence: I think serial monogamy says it all.