Slouch

Noun

 * 1) A hanging down of the head; a drooping posture; a limp appearance
 * He sat with an unenthusiastic slouch.
 * 1) any depression or hanging down, as of a hat brim.
 * The plant hung in a permanent slouch.
 * 1)  An awkward, heavy, clownish fellow.

Verb

 * 1) to hang or droop; to adopt a limp posture
 * Do not slouch when playing a flute.

Adverbs for Slouch
heavily; carelessly; sullenly; obnoxiously; wearily; visibly; deliberately.

Thesaurus
amble, andante, arm, barge, bay, bayou, bend, blockhead, blunderer, blunderhead, bog, boor, botcher, bowl along, bum, bum around, bumbler, bundle, bungler, cave, cave in, claudication, clock watcher, clod, clodhopper, clodknocker, clot, clown, clump, cove, crawl, creek, creep, dallier, dawdle, dawdler, dead march, decline, diddler, dillydallier, do nothing, do-nothing, dogtrot, dolittle, dolt, doodler, drag, droop, faineant, fen, flop, flop down, flounce, flump, flump down, foot, footpace, footslog, founder, fumbler, funeral march, gait, gallop, gaum, gawk, gentleman of leisure, give way, go down, goldbrick, goldbricker, goof off, goof-off, gowk, gulf, halt, hang around, harbor, hippety-hop, hitch, hobble, hop, hunch, idle, idleness, idler, indolence, jog, jog trot, jolt, jump, klutz, laggard, lapse, laze, laziness, lazy, lazybones, lean, leisurely gait, lie around, limp, lingerer, loaf, loafer, lobster, lock step, loiter about, loiterer, loll, loll around, loller, lollop, lollop around, looby, lop, lotus-eater, lough, lounge, lounge around, lounger, lout, lower, lubber, lumber, lumbering pace, lump, lunge, lurch, malingerer, marsh, marshland, meathead, mince, mincing steps, mire, mooch around, moon, moon around, mope, moper, morass, no slouch, oaf, ox, pace, paddle, peg, piaffe, piaffer, plod, plop, plop down, plump, potterer, prance, putterer, quagmire, rack, roll, sag, sashay, saunter, scuff, scuffle, scuttle, set, settle, settle down, shamble, shuffle, sidle, single-foot, sink, sink down, sit around, skip, slink, slither, slog, slothfulness, slouch around, sloucher, slough, sloven, slow march, slow motion, slowness, slubberer, slug, slugabed, sluggard, sluggishness, slump, slump down, stagger, stalk, stamp, stand around, step, stick-in-the-mud, stomp, stoop, straddle, straggle, stride, stroll, strolling gait, strut, stump, submerge, subside, sump, swag, swagger, swampland, swing, time killer, time waster, tittup, toddle, totter, traipse, tread, trifler, trip, trollop, trot, trudge, velocity, waddle, waiter on Providence, walk, wamble, wiggle, wilt, wobble, yokel

Etymology
From slókr:, (cognate to Swedish sloka:, to wilt, slouch.