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adjective
extending very far, usually down
Synonyms: abysmal, abyssal, below, beneath, bottomless, broad, buried, deep-seated, distant, downreaching, far, fathomless, immersed, inmost, low, profound, rooted, subaqueous, submarine, submerged, subterranean, sunk, underground, unfathomable, wide, yawning
Antonyms: shallow
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adjective
abstract, complicated in meaning
Synonyms: abstruse, acute, arcane, complex, concealed, Delphic, difficult, discerning, esoteric, hard to understand, heavy, hermetic, hidden, incisive, intricate, learned, mysterious, obscure, occult, Orphic, penetrating, profound, recondite, sagacious, secret, serious, Sibylline, wise
Antonyms: frivolous, ignorant, shallow, superficial, trivial, unintelligent
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adjective
scheming, devious
Synonyms: acute, artful, astute, canny, contriving, crafty, cunning, designing, foxy, guileful, insidious, intriguing, keen, knowing, plotting, sharp, shrewd, sly, tricky, wily
Antonyms: aboveboard, artless, open
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adjective
absorbed, engrossed in activity
Synonyms: abstracted, centered, concentrated, enfolded, engaged, fixed, focused, immersed, intent, into, lost, musing, preoccupied, rapt, set, wrapped, wrapped up
Antonyms: flighty, superficial
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adjective
intense in effect on senses
Synonyms: bass, booming, dark, extreme, full-toned, grave, great, hard, low, low-pitched, low-toned, profound, resonant, rich, sonorous, strong, vivid
Antonyms: light, pale, quiet, soft
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noun
the sea
Synonyms: blue, brine, briny, Davy Jones’s locker, drink, main, middle, ocean, Poseidon’s realm, the high seas