Outgrow \Out*grow"\, v. t. [imp. {Outgrew}; p. p. {Outgrown}; p. pr. & vb. n. {Outgrowing}.] [1913 Webster] 1. To surpass in growing; to grow more than. --Shak. [1913 Webster] 2. To grow out of or away from; to grow too large, or too aged, for; as, to outgrow clothing; to outgrow usefulness; to outgrow an infirmity. [1913 Webster]