Source : Webster's Revised Unabridged Dictionary (1913)

Pregnant \Preg"nant\, a. [L. praegnans, -antis; prae before +
   genere, gignere, to beget: cf. F. pr['e]gnant. See {Gender},
   2d {Kin}.]
   1. Being with young, as a female; having conceived; great
      with young; breeding; teeming; gravid; preparing to bring
      forth.

   2. Heavy with important contents, significance, or issue;
      full of consequence or results; weighty; as, pregnant
      replies. `` A pregnant argument.'' --Prynne. `` A pregnant
      brevity.''

Pregnant \Preg"nant\, n.
   A pregnant woman. [R.] --Dunglison.

Pregnant \Preg"nant\, a. [F. prenant taking. Cf. {Pregnable}.]
   Affording entrance; receptive; yielding; willing; open;
   prompt. [Obs.] `` Pregnant to good pity.'' --Shak.

Source : WordNet®

pregnant
     adj 1: carrying developing offspring within the body or being about
            to produce new life [ant: {nonpregnant}]
     2: rich in significance or implication; "a meaning look";
        "pregnant with meaning" [syn: {meaning(a)}, {significant}]
     3: filled with or attended with; "words fraught with meaning";
        "an incident fraught with danger"; "a silence pregnant
        with suspense" [syn: {fraught(p)}]