unridiculous

“Unridiculous” is a portmanteau of “unbelievable” and “ridiculous” coined by Clint D. during a frustrating phone conversation with a Chinese restaurant over an incorrect order. It refers to a combination of frustration, severe disbelief, and confusion. (The term may have originated from "UN-believable," a common saying of a coworker with a long emphasis on the first syllable and with similar meaning.) Mimicking this confusion started as a joke, but the term has come into serious usage among his ~100 coworkers and possibly beyond.

Unridiculous is when something is not ridiculous, funny and is just plain serious. However, in its opposivity, it is ridiculous in the way it sounds thus making it a double-entendre.