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

1.
antipático, hostil, distante
not friendly; hostile or aloof
:
•
The new neighbor seemed very unfriendly.
El nuevo vecino parecía muy antipático.
•
The atmosphere in the office was unfriendly and tense.
El ambiente en la oficina era hostil y tenso.