the GNU version of the Collaborative International Dictionary of English
adj. Born out of wedlock.
adj. Born of low parentage.
adj. Vile; mean.
The Century Dictionary and Cyclopedia
Of base or low birth; born out of wedlock; of low or mean parentage or origin; spurious.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. illegitimate
adj. of low birth or station (`base' is archaic in this sense)
Word Usage
"“She has agreed to meet the Caesar in the field, and he will not hesitate, like a baseborn miscreant, to take every advantage in the encounter, which, I grieve to say, may in all likelihood be fatal to my mistress.”"