ignoble UK /ɪɡˈnəʊbəl/US /ɪɡˈnoʊbəl/adjective 4verb 1forms 5 adjective4 •Not noble; plebeian; common.I was not ignoble of descent. — 1591 •Not honorable; base.A base, ignoble mind, / That mounts no higher than a bird can soar. — 1591 •Of an element, dangerously reactive. •Not a true or "noble" falcon; said of certain hawks, such as the goshawk. verb1 •To make ignoble; to bring low. formsignobled · ignobling · ignobles · ignobler · ignoblest