The stranger is 'scary' looking. = He looks 'scary'. = He's 'scary' looking.
a 'scary' [='frightening'] movie
(..) You're a mean, green, fiightin' machine. Together we'll scare the spit out ofanybody that crosses us. Oh, wow! That was really scary. 'cause you defiinitely need some Tic Tacs or something, 'cause your breath stinks! just like the time-- Then I ate some rotten berries. (..)2001 Shrek