Synonyms|90Antonyms|27|Broader|0Narrower|3Related|64

73 entries under noun topic. ×

2
secret(question, puzzle, perplexity, obscurity)
2
sixty-four-thousand-dollar question(expression, question, secret, puzzle)
2
tough nut to crack(expression, idiom, question, secret)
1
puzzlement(question, secret, puzzle, obscurity)
1
abstruseness(question, secret, puzzle, subtlety)
1
brain-teaser(question, puzzle, riddle)
1
braintwister(question, secret, puzzle, subtlety)
1
case(puzzle, riddle, enigma)
1
charade(question, secret, puzzle, subtlety)
1
chiller(question, secret, puzzle, subtlety)
1
cliffhanger(difficulty, question, secret, puzzle)
1
confusing(question, puzzle, riddle)
1
crux(difficulty, question, secret, puzzle)
1
difficult problem(question, puzzle, riddle)
1
difficult question(question, puzzle, riddle)
1
difficulty(question, secret, puzzle, subtlety)
1
dilemma(question, puzzle, mystery, conundrum)
1
grabber(difficulty, challenge, question, secret)
1
inscrutability(question, secret, puzzle, subtlety)
1
inscrutableness(question, secret, puzzle, subtlety)
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APASmart Define. (2015). brainteaser thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/brainteaser/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainteaser thesaurus" https://smartdefine.org/brainteaser/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, brainteaser thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/brainteaser/thesaurus/synonyms>.
MLASmart Define. "brainteaser thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/brainteaser/thesaurus/synonyms>