adj. 25B6; adjective
she is heavily pregnant : EXPECTING A BABY, expectant, carrying a child; informal expecting, in the family way, preggers, with a bun in the oven; Brit. informal up the duff, in the (pudding) club, up the spout; N. Amer. informal knocked up, having swallowed a watermelon seed; Austral. informal with a joey in the pouch; informal, dated in trouble; archaic with child, in a delicate condition, in an interesting condition; technical gravid, parturient.
a ceremony pregnant with religious significance : FILLED, charged, heavy; full of.
a pregnant pause : MEANINGFUL, significant, suggestive, expressive, charged.