idler
noun
you were not brought into this world to be an idler—you'll have to set your mind to something:
loafer, layabout, good-for-nothing, ne'er-do-well, do-nothing, lounger, shirker, sluggard, slugabed, slug, laggard, malingerer;
informal waster, slacker, cyberslacker, slob, lazybones;
British, informal slowcoach, skiver;
North American, informal slowpoke;
archaic wastrel;
French, archaic fainéant.
▷antonyms workaholic; swot.
idler Oxford Dictionary of English