Idler

n.	1.	One who idles; one who spends his time in inaction; a lazy person; a sluggard.
	2.	(Naut.) One who has constant day duties on board ship, and keeps no regular watch.
	3.	(Mach.) An idle wheel or pulley. See under Idle.

Noun

1.

idler - person who does no work; "a lazy bum" Synonyms: do-nothing, layabout, loafer, bum

Arab, beach bum, beachcomber, beggar, bo, bum, bummer, bungler, clock watcher, dallier, dawdle, dawdler, diddler, dillydallier, disregarder, do-nothing, dodger, dogie, dolittle, doodler, drone, faineant, gamin, gamine, gentleman of leisure, goldbrick, goldbricker, goof-off, guttersnipe, hobo, homeless waif, ignorer, laggard, landloper, lazybones, lazzarone, lingerer, loafer, loiterer, loller, losel, lotus-eater, lounge lizard, lounger, lubber, malingerer, mope, moper, mudlark, neglecter, negligent, piker, potterer, procrastinator, putterer, ragamuffin, ragman, ragpicker, rounder, shirker, ski bum, slacker, slouch, sloucher, sloven, slug, slugabed, sluggard, slut, stick-in-the-mud, stiff, stray, street Arab, street urchin, sundowner, surf bum, swagman, swagsman, tatterdemalion, tennis bum, time killer, time waster, tramp, trifler, turnpiker, urchin, vag, vagabond, vagrant, waif, waifs and strays, waiter on Providence, wastrel