(n.) One who trifles.

Sunday painter amateur bungler clock watcher coquet criticaster dabbler dabster dallier dawdle dawdler diddler dilettante dillydallier disregarder do-nothing dodger dolittle doodler faineant flirt fribble gentleman of leisure goldbrick goldbricker goof-off grammaticaster half scholar idler ignorer laggard lingerer loafer loiterer loller lotus-eater lounger lubber malingerer mope moper neglecter negligent philologaster philosophaster piddler potterer procrastinator putterer sciolist shirker slacker slouch sloucher sloven slug sluggard slut smatterer stick-in-the-mud time killer time waster waiter on Providence