depthless, fathomless, dostoyevskian, unnamable, chthonic, unnameable, illimitable, unrepressed, alchemic, unaffecting, opiated, apparitional, unfathomed, onanistic, unquiet, unarticulated, epiphanic, literalized, oneiric, phantasmal, nonliterary, cobwebby, jamesian, miasmic, nabokovian, dankest, unthought, easeful, eldritch, twilit, sonic, indistinctive, creaturely, ludic, gimcrack, aphoristic, lucent, infinite, beethovenian, sophoclean, illusional, impalpable, sublimated, profoundest, rabelaisian, unstrained, unperceived, murkiest, cryptozoological, undreamed, foetid, maggoty, incommunicable, subterranean, vasty, vivifying, unremembered, polymathic, quotidian, plagiaristic, unfading, unimagined, stygian, essayistic, unhidden, cavelike, miry, bizarreness, lovecraftian, unlived, lambent, unacknowledged, sphinxlike, grand guignol, saurian, supernal, unbeautiful, unexplored, writerly, numinous, amatory, semiotic, effulgent, gemlike, overdetermined, indefinable, hemingwayesque, unuttered, contentless, compendious, unsuspected, unwonted, dantean, unexpressed, seriocomic, unstirred, uncolored, esoteric, cohering, bloviation, obscurer, holmesian, unfathomable, bottomless, measureless, shoreless, unsounded, abysmal, limitless, tenebrous, lightless, starless, trackless, unsearchable, nether, nethermost

deep, profound