(名詞) 非自願獨身者 (involuntary celibate);非自願的獨身狀態 (involuntary celibacy)。
—(形容詞) 非自願獨身者的;非自願獨身的 (involuntarily celibate)。


It can be argued that incel is a symptom of a deeper root cause and that this cause should be the greater focus of investigation. The most obvious reasons for some incels would be social phobia or a significant degree of social incompetence.
—“About,” The Incel Project, August 20, 2008

One man has a suggestion to solve socially-awkward men's dating woes: Institute a government program which would pay women to go on dates with them.

This is evidently not a joke. The blog "governmentsgetgirlfriends" is dedicated to discussing the issues of "incel" men (short for "involuntary celibacy").
—"Government Should Pay Women To Date Men With Social Anxiety, Suggests Man," The Huffington Post, May 17, 2013