IPA: /nɒnˈsoʊʃəl/
KK: /nɑnˈsoʊʃəl/
Not interested in or involved with social activities or interactions.
He preferred a nonsocial lifestyle, spending most of his time reading and writing alone.
Nonsocial → It is formed from "non-" (meaning not) and "social" (from Latin "socialis", meaning of companionship or society). The word "nonsocial" means not relating to or not involving companionship or society.
Think of 'non-' meaning not, and 'social' relating to companionship — so nonsocial describes something that is not about companionship.