Wiktionary
ungregarious
a. (context of a person English) Not gregarious; unsociable.
WordNet
ungregarious
adj. not gregarious [ant: gregarious]
not disposed to seek company; "a lonely ungregarious person"
Usage examples of "ungregarious".
Jasper Edmunds, the ungregarious, had been suddenly snuffed out in a laboratory explosion, shortly after coming on to the chemical engineering staff at the big glass works in Rattoon, there were very few to be inquisitive about the future plans of his widow when she departed a month later for Waterloo.