[preg.nant] adj [ME preignant, fr. MF, fr. prp. of preindre to press, fr. L premere--more at press] (14c) archaic: cogent
[2]pregnant adj [ME, fr. L praegnant-, praegnans, alter. of praegnas, fr. prae- pre- + -gnas (akin to gignere to give birth to)--more at kin] (15c) 1: abounding in fancy, wit, or resourcefulness: inventive "all this has been said ... by great and ~ artists --Times Lit. Supp."
2: rich in significance or implication: meaningful, profound "the ~ phrases of the Bible --Edmund Wilson" "a ~ pause"
3: containing unborn young within the body: gravid
4: having possibilities of development or consequence: involving important issues: momentous "draw inspiration from the heroic achievements of that ~ age --Kemp Malone"
5. obs: inclined, disposed "your own most ~ and vouchsafed ear --Shak."
6: full, teeming -- preg.nant.ly adv