defition 1: Someone who isn't into dating for any personal reason.
e.g.: He/She doesn't want to feel emotionally attached to someone else because they feel they do not have enough time to dedicate themselves to a relation; Doesn't enjoy kissing or any sort of cuddling; Values their freedom above romance.

definition 2: Someone who is seen by the majority as having no potential to partner up or date with.
e.g.: Rude or unpolite person; Uneducated; Unnatractive.