The word "velleities" refers to a weak or futile desire or wish that lacks real intention or effort. Some antonyms for velleities would be determined, resolute, resolved, steadfast, committed, decisive, purposeful or strong-willed. These antonyms bring a sense of purpose or determination to a person's desires or wishes, and imply that they are actively pursuing or taking steps towards achieving their goals. By contrast, velleities suggest a passive or idle wish that is unlikely to result in any real action or change. For those seeking to overcome velleities in their lives, focusing on cultivating a strong sense of determination or purposefulness can be key.