baseborn s of low birth or station (`base' is archaic in this sense) baseborn wretches with dirty faces s illegitimate Usage(s) He scorned the feeble, ignorant, baseborn, wellborn, and those who loved him. When the haughty Duchess of Cleveland, another of the King's mistresses, put on airs with her baseborn rival, Nell gave her a friendly whop on the shoulder, and remarked . Synonym(s) base humble lowly