In children, cruelty to animals, bullying behavior, impulsivity or explosions of anger, social isolation, and poor school performance may be, in some cases, early signs of
[pharmacypedia.org]
The term antisocial may be confusing to the lay public, as the more common definition outside of clinical usage is an individual who is a loner or socially isolated.
[theravive.com]
To be anti -social is to be against society: against rules, norms, laws and acceptable behavior.
[theravive.com]