The Collaborative International Dictionary of English v.0.48:
Pregnantly \Preg"nant*ly\, adv. In a pregnant manner; fruitfully; significantly. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Pregnantly \Preg"nant*ly\, adv. Unresistingly; openly; hence, clearly; evidently. [Obs.] --Shak. [1913 Webster]