unfriendly
US /ʌnˈfrend.li/
UK /ʌnˈfrend.li/

1.
scortese, ostile, freddo
not friendly; hostile or aloof
:
•
The new neighbor seemed very unfriendly.
Il nuovo vicino sembrava molto scortese.
•
The atmosphere in the office was unfriendly and tense.
L'atmosfera in ufficio era ostile e tesa.