The word "mindful" is an adjective meaning "attentive, aware, or careful (usually followed by of)" [0] or "conscious or aware of something"[0][0]. We've already looked at "attentive" and found that it's synonymous with words like "mindful", "heedful", "aware" and "alert", all of which represent the same process: To be attentive of something; to be paying attention; to be aware. It does not require any further analysis to demonstrate that mindfulness and attentiveness are simply labels for the same, naturally occurring ability to pay attention.