standoffish
US /ˌstændˈɑː.fɪʃ/
UK /ˌstændˈɑː.fɪʃ/

1.
unfriendly and distant toward other people
:
•
She was a bit standoffish at first, but she warmed up after a while.
•
His standoffish attitude made it difficult to approach him.
unfriendly and distant toward other people