UNGU'ARDED, adjective 1. Not guarded; not watched. 2. Not defended; having no guard. 3. Careless; negligent; not attentive to danger; not cautious; as, to be unguarded in conversation. 4. Negligently said or done; not done or spoken with caution; as an unguarded expression or action.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI