sweepy /ˈswiːpi/adjective 1noun 1forms 5 adjective1 •Moving with a sweeping motion, or having a curving shape that suggests it.The branches bend before their sweepy sway. — 1697 noun1 •(Scotland, informal) A lottery generally held at a workplace, usually on the results of a sporting event, where players win if their randomly chosen team wins; a sweepstake, sweep. formssweepies · more sweepy · sweepier · most sweepy · sweepiest