leer ‧ y /ˈlɪəri $ ˈlɪri/ BrE AmE adjective informal
[ Date: 1700-1800 ; Origin: Perhaps from leer 'cheek' ; ⇨ ↑ leer ]
careful in the way that you deal with something or someone because you do not trust them SYN wary
leery of
I was very leery of him after I found out he had lied to Jennifer.