What does "incautious" mean?

Incautious: Not cautious; not circumspect; not attending to the circumstances on which safety and interest depend; heedless; careless; as, an incautious step; an incautious remark. You . . . incautious tread On fire with faithless embers overspread. Francis. His rhetorical expressions may easily captivate any incautious reader. Keill. -- In*cau"tious*ly, adv. -- In*cau"tious*ness, n.