| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | secret, concealed |
| Synonyms: | abstruse, alchemistic, arcane, astrological, baffling, cabalistic, covert, cryptic, curious, dark, difficult, enigmatic, enigmatical, equivocal, esoteric, furtive, hidden, impenetrable, incomprehensible, inexplicable, inscrutable, insoluble, magical, mystical, mystifying, necromantic, obscure, occult, oracular, perplexing, puzzling, recondite, secretive, sphinxlike, spiritual, strange, subjective, symbolic, transcendental, uncanny, unfathomable, unknowable, unknown, unnatural, veiled, weird |
| Notes: | mysterious means of an obscure nature, while mystical means having a divine meaning that transcends human understanding |
| Antonyms: | apparent, known, obvious, plain, public, straightforward, tangible, unmysterious |
| Main Entry: | cryptic |
| Part of Speech: | adjective |
| Definition: | secret; obscure in meaning |
| Synonyms: | Delphian, Delphic, abstruse, ambiguous, apocryphal, arcane, cabalistic, dark, enigmatic, equivocal, esoteric, evasive, hidden, incomprehensible, inexplicable, murky, mysterious, mystic, mystical, mystifying, occult, opaque, oracular, perplexing, puzzling, recondite, secretive, strange, tenebrous, unclear, unfathomable, uninformative, vague, veiled |
| Notes: | cryptic coloration helps conceal an animal; phaneric coloration makes an animal stand out |
| Antonyms: | clear, obvious, plain, seen, straightforward |
| Main Entry: | curious |
| Part of Speech: | adjective |
| Definition: | very odd |
| Synonyms: | bizarre, exotic, extraordinary, marvelous, mysterious, novel, oddball, peculiar, puzzling, quaint, queer, rare, remarkable, singular, strange, unconventional, unexpected, unique, unorthodox, unusual, weird, wonderful |
| Antonyms: | average, normal, ordinary, usual |
| Main Entry: | dark |
| Part of Speech: | adjective |
| Definition: | hidden, secret |
| Synonyms: | Delphian, abstruse, anagogic, arcane, cabalistic, complicated, concealed, cryptic, deep, enigmatic, esoteric, intricate, knotty, mysterious, mystic, mystical, mystifying, not known, obscure, occult, puzzling, recondite |
| Antonyms: | apparent, distinct, evident, manifest, plain, visible |
| Main Entry: | deep |
| Part of Speech: | adjective |
| Definition: | abstract, complicated in meaning |
| Synonyms: | Delphic, Orphic, Sibylline, abstruse, acute, arcane, complex, concealed, difficult, discerning, esoteric, hard to understand, heavy*, hermetic, hidden, incisive, intricate, learned, mysterious, obscure, occult, penetrating, profound, recondite, sagacious, secret, serious, wise |
| Antonyms: | frivolous, ignorant, shallow, superficial, trivial, unintelligent |
| Main Entry: | difficult |
| Part of Speech: | adjective |
| Definition: | complicated; hard to comprehend |
| Synonyms: | abstract, abstruse, baffling, bewildering, complex, confounding, confusing, dark, deep, delicate, enigmatic, enigmatical, entangled, esoteric, formidable, hard to explain, hard to solve, hidden, inexplicable, intricate, involved, knotty, labyrinthine, loose, meandering, mysterious, mystical, mystifying, nice, obscure, obstinate, paradoxical, perplexing, problematical, profound, puzzling, rambling, subtle, tangled, thorny, ticklish, troublesome, unclear, unfathomable, unintelligible, vexing |
| Antonyms: | easy, simple, straightforward, uncomplicated |
| Main Entry: | eerie |
| Part of Speech: | adjective |
| Definition: | spooky |
| Synonyms: | awesome, bizarre, crawly, creepy, fantastic, fearful, frightening, ghostly, mysterious, scary, spectral, strange, supernatural, superstitious, uncanny, unearthly, weird |
| Antonyms: | funny, normal, ordinary, silly |
| Main Entry: | funny |
| Part of Speech: | adjective |
| Definition: | odd, peculiar |
| Synonyms: | bizarre, curious, dubious, fantastic, mysterious, perplexing, puzzling, queer, remarkable, strange, suspicious, unusual, weird |
| Antonyms: | common, normal, standard, usual |
| Main Entry: | hidden |
| Part of Speech: | adjective |
| Definition: | unseen, secret |
| Synonyms: | QT, abstruse, buried, clandestine, cloaked, close, clouded, concealed, covered, covert, cryptic, dark, disguised, eclipsed, esoteric, hermetic, hermetical, imperceivable, in the dark, indiscernible, invisible, latent, masked, mysterious, mystic, mystical, obscure, occult, out of view, private, recondite, screened, secluded, sequestered, shadowy, shrouded, surreptitious, ulterior, undercover, underground, undetected, undisclosed, unexposed, unknown, unrevealed, veiled, withheld |
| Antonyms: | bare, exhibited, exposed, open, out, seen, showing, uncovered |