He doesn't 'shrink from' telling the truth, no matter how painful it may be.
He's no 'shrinking violet' when it comes to competition.
The treatment should 'shrink' the tumor.
(..) - Please, Stark, by all means. - Oh, Here we go. - Okay. - Uh oh. - Um-hmm. - Never one to shrink from an honest challenge. - Get after it. - Here we go. - It's physics. - Physics! - Right, so, if I lift it, I then rule Asgard? (..)2015 Avengers: Age of Ultron