Pregnant

a. [Lat. prægnans, for prægenans, from præ, before, and genere, to beget; Fr. prēgnant, It. pregnante, Sp. preñado, O. Fr. prains, Pr. prenth, Pg. prenhe, It. pregno, from prægnas, a collateral form of prægnans.]

1. Being with young, as a female; great with child; breeding; teeming; gravid; preparing to bring forth.
2. Hence, heavy with important contents; full of consequence; of unusual significance. “Pregnant causes.” Milton.

An egregious and pregnant instance how far virtue surpasses ingenuity. Woodward. There is nothing of the artificial Johnsonian balance in his style. It is as often marked by a pregnant brevity as by a sonorous amplitude. E. Everett. 3. Of unusual capacity or ability; full of promise or excellence. [Obs.] The schoolmaster assured me that there had not been for twenty years a more pregnant youth in that place than my grandson. Evelyn. Pregnant signification, one in which more is implied than is said or appears; as, the beasts trembled forth from their dens; that is, came forth trembling.