Cimmerian, abstruse, adiaphanous, adumbrate, aleatoric, aleatory, ambiguous, amorphic, amorphous, amphibological, anarchic, anonymous, apply to, arcane, around the bush, back of beyond, baffling, baggy, bandage, beamless, beat about, becloud, beclouded, bedarken, bedazzle, bedim, befog, befogged, beg the question, begloom, belie, bemist, benight, beyond one, bicker, black, black as night, black out, blacken, blanket, blear, bleared, bleary, blind, blind the eyes, blindfold, blobby, block, block the light, blot out, blur, blurred, blurry, boggle, broad, brown, buried, caliginous, camouflage, canopy, cast a shadow, cavil, chance, chancy, chaotic, characterless, choplogic, clabber up, clear as mud, cloak, close, clothe, cloud, cloud over, cloud up, clouded, cloudy, complex, complicate, complicated, conceal, concealed, confuse, confused, confusing, cope, corrupt, cover, cover up, covered, covert, cowl, crabbed, cramp, cryptic, curtain, dark, dark as night, dark as pitch, darken, darken over, darkling, darksome, daze, dazzle, deform, deprive of sight, devious, difficult, dim, dim out, disguise, dismal, disorder, disordered, disorderly, dissemble, distant, distort, distract attention from, dodge, double-edged, double-faced, doubtful, dubious, dull, dusk, dusky, ebon, ebony, eclipse, eclipsed, encloud, encompass with shadow, enigmatic, enmist, ensconce, enshroud, envelop, equivocal, equivocate, esoteric, evade, evade the issue, excecate, faint, falsify, far-off, far, featureless, feeble, fence, film, filmy, fog, fog up, foggy, foreign, formless, fuliginous, fuzz, fuzzy, garble, garbled, general, glare, gloom, gloomy, gloss over, gouge, grumly, half-seen, half-visible, hard, hard to understand, haze, hazy, hedge, hid, hidden, hide, hit-or-miss, hood, hoodwink, humble, ignotus, ill-defined, illegible, impervious to light, imprecise, in a cloud, in a fog, in eclipse, in purdah, in the wings, inaccessible, inaccurate, inchoate, incoherent, incommunicado, incomprehensible, inconclusive, inconsequential, inconspicuous, indecisive, indefinable, indefinite, indeterminable, indeterminate, indistinct, indistinguishable, inexact, inexplicable, inform, inglorious, inscrutable, insignificant, intransparent, intricate, jumble, jumbled, kaleidoscopic, keep from, keep under cover, knotty, latent, lax, lay on, lay over, little known, lonesome, loose, low-profile, lowly, lumpen, make blind, make uncertain, make unintelligible, mantle, mask, mean, merely glimpsed, mess up, minor, misadvise, misdirect, miseducate, misguide, misinform, misinstruct, mislead, misrepresent, mist, misteach, misty, muddle, muddy, muffle, murk, murky, mysterious, mystic, mystical, mystify, mystifying, nameless, nebulous, night-black, night-clad, night-cloaked, night-dark, night-enshrouded, night-filled, night-mantled, night-veiled, nitpick, no credit to, nondescript, nonspecific, nubilate, nubilous, obduce, obfuscate, obfuscated, obnubilate, obscured, obumbrate, occult, occultate, occulted, odd, opaque, orderless, out-of-the-way, out of focus, overcast, overcloud, overlay, overshadow, oversmoke, overspread, overtechnical, pale, palter, parry, perplexed, perplexing, pervert, pick nits, pitch-black, pitch-dark, pitchy, prevaricate, pussyfoot, put on, puzzling, quibble, random, rayless, recondite, remote, removed, renownless, retired, roiled, roily, scramble, scrambled, screen, scum, secluded, secluse, secret, semivisible, sequestered, shade, shadow, shadowed forth, shadowy, shady, shapeless, shield, shift, shroud, shuffle, shy, sidestep, slur over, smog, smoke, snow-blind, solitary, somber, split hairs, spread over, starless, stochastic, strange, strike blind, subfusc, sunless, superimpose, superpose, sweeping, tenebrious, tenebrose, tenebrous, tergiversate, tough, transcendent, turbid, umbral, uncelebrated, uncertain, unclear, undefined, under an eclipse, under cover, under house arrest, under wraps, underground, undestined, undetermined, undistinguished, unemphatic, unfamed, unfamiliar, unfathomable, unform, unglorified, unheard-of, unhonored, unilluminated, unimportant, unintelligible, unknown, unlighted, unlit, unnamed, unnotable, unnoted, unnoticeable, unnoticed, unordered, unorganized, unplain, unpopular, unrecognizable, unremarked, unrenowned, unshape, unspecified, unsung, vague, varnish, veil, veiled, weak, whitewash, wrapped in clouds