insociable

adjective

in·​so·​cia·​ble (ˌ)in-ˈsō-shə-bəl 

: not sociable

insociability

(ˌ)in-(ˌ)sō-shə-ˈbi-lə-tē 

noun

insociably

(ˌ)in-ˈsō-shə-blē 

adverb

Word History

Etymology

Latin insociabilis, from in- + sociabilis sociable

First Known Use

1588, in the meaning defined above