The degree of "the quality of being dateable" that one possesses.
How attractive that person is to their desired sex.
i.e. How likely a third party would want to date that person.
<Matthew> Sure she's hot, but her high dateability is questionable when you start to know of her outlandish obsessions.
<CharlesLivingston> Listing "computing" as your main interests on Facebook negatively affects your dateability!