"antisocial" in the adjective sense
1. antisocial
shunning contact with others just shy"
"standoffish and antisocial"
"he's not antisocial
2. antisocial, asocial
hostile to or disruptive of normal standards of social behavior
"criminal behavior or conduct that violates the rights of other individuals is antisocial"
"crimes...and other asocial behavior"
"an antisocial deed"
Source: WordNet® (An amazing lexical database of English)
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