biological parent (noun) biological parent: birth mother or father
Sinonime: Machiavellian,
artful,
canny,
careful,
cautious, chary, circumspect, considerate, contriving,
crafty,
cunning, designing,
devious, discreet, gingerly,
guarded, guileful,
intelligent, manipulative, politic, premeditating, safe, scheming,
sharp, shrewd,
sly, wary,
wilyAntonime: artless,
naive,
unassuming, uncalculating