catch/take somebody unawares
To be surprised by someone or something. A: "Oh man, I was totally caught unawares when your mother showed up here this morning." B: "I figured as much when she told me that you answered the door in your robe and curlers!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
catch/take somebody unaˈwaressurprise somebody; do something when somebody does not expect it: Her sudden refusal took me unawares. ♢ You caught us unawares by coming so early.
Farlex Partner Idioms Dictionary © Farlex 2017