trackless

• POS: Adjective
• HYPHEN: track=less
• COUNT in NET: 1 in 1 verses (in OT : 1 in 1 verses)

CIDE DICTIONARY

trackless, a. 

 Having no track; marked by no footsteps; untrodden; as, a trackless desert.  [1913 Webster]
"To climb the trackless mountain all unseen."  [1913 Webster]

OXFORD DICTIONARY

trackless, adj.
1 without a track or tracks; untrodden.
2 leaving no track or trace.
3 not running on a track.

Idiom

trackless trolley US a trolleybus.

ROGET THESAURUS

trackless

Difficulty

N difficulty, hardness, impracticability, tough work, hard work, uphill work, hard task, Herculean task, Augean task, task of Sisyphus, Sisyphean labor, tough job, teaser, rasper, dead lift, dilemma, embarrassment, deadlock, perplexity, intricacy, entanglement, complexity, cross fire, awkwardness, delicacy, ticklish card to play, knot, Gordian knot, dignus vindice nodus, net, meshes, maze, coil, crooked path, involvement, nice point, delicate point, subtle point, knotty point, vexed question, vexata quaestio, poser, puzzle, paradox, hard nut to crack, nut to crack, bone to pick, crux, pons asinorum, where the shoe pinches, nonplus, quandary, strait, pass, pinch, pretty pass, stress, brunt, critical situation, crisis, trial, rub, emergency, exigency, scramble, scrape, hobble, slough, quagmire, hot water, hornet's nest, sea of troubles, peck of troubles, pretty kettle of fish, pickle, stew, imbroglio, mess, ado, false position, set fast, stand, standstill, deadlock, dead set, fix, horns of a dilemma, cul de sac, hitch, stumbling block, crab, curmudgeon, difficult, not easy, hard, tough, troublesome, toilsome, irksome, operose, laborious, onerous, arduous, Herculean, formidable, sooner said than done, more easily said than done, easier said than done, difficult to deal with, hard to deal with, ill-conditioned, crabbed, crabby, not to be handled with kid gloves, not made with rose water, awkward, unwieldy, unmanageable, intractable, stubborn, perverse, refractory, plaguy, trying, thorny, rugged, knotted, knotty, invious, pathless, trackless, labyrinthine, intricate, complicated, impracticable, not feasible, desperate, embarrassing, perplexing, delicate, ticklish, critical, beset with difficulties, full of difficulties, surrounded by difficulties, entangled by difficulties, encompassed with difficulties, under a difficulty, in a box, in difficulty, in hot water, in the suds, in a cleft stick, in a fix, in the wrong box, in a scrape, in deep water, in a fine pickle, in extremis, between two stools, between Scylla and Charybdis, surrounded by shoals, surrounded by breakers, surrounded by quicksands, at cross purposes, not out of the wood, reduced to straits, hard pressed, sorely pressed, run hard, pinched, put to it, straitened, hard up, hard put to it, hard set, put to one's shifts, puzzled, at a loss, at the end of one's tether, at the end of one's rope, at one's wit's end, at a nonplus, at a standstill, graveled, nonplused, nonplussed, stranded, aground, stuck fast, set fast, up a tree, at bay, aux abois, driven into a corner, driven from pillar to post, driven to extremity, driven to one's wit's end, driven to the wall, au bout de son Latin, out of one's depth, thrown out, accomplished with difficulty, hard-fought, hard-earned, with difficulty, with much ado, barely, hardly, uphill, against the stream, against the grain, d rebours, invita Minerva, in the teeth of, at a pinch, upon a pinch, at long odds, against long odds, ay there's the rub, hic labor hoc opus, things are come to a pretty pass, ab inconvenienti, ad astra per aspera, acun chemin de fleurs ne conduit a la gloire.

Space

N space, extension, extent, superficial extent, expanse, stretch, hyperspace, room, scope, range, field, way, expansion, compass, sweep, swing, spread, dimension, length, distance, size, volume, hypervolume, latitude, play, leeway, purchase, tolerance, room for maneuver, spare room, elbow room, house room, stowage, roomage, margin, opening, sphere, arena, open space, free space, void, waste, wildness, wilderness, moor, moorland, campagna, abyss, unlimited space, infinity, world, ubiquity, length and breadth of the land, proportions, acreage, acres, acres and perches, roods and perches, hectares, square miles, square inches, square yards, square centimeters, square meters, yards (clothing), ares, arpents, spacious, roomy, extensive, expansive, capacious, ample, widespread, vast, world-wide, uncircumscribed, boundless, shoreless, trackless, pathless, extended, extensively, wherever, everywhere, far and near, far and wide, right and left, all over, all the world over, throughout the world, throughout the length and breadth of the land, under the sun, in every quarter, in all quarters, in all lands, here there and everywhere, from pole to pole, from China to Peru, from Indus to the pole, from Dan to Beersheba, from end to end, on the face of the earth, in the wide world, from all points of the compass, to the four winds, to the uttermost parts of the earth.