39 entries under problem topic. ×

1
dilemma(noun, challenge, case, knot)
1
glitch(noun, challenge, case, knot)
1
hitch(noun, challenge, case, knot)
1
knot(noun, challenge, case)
1
mire(noun, challenge, case, knot)
1
mystery(noun, challenge, case, knot)
1
nut(noun, challenge, case, knot)
1
perplexer(noun, challenge, case, knot)
1
pitfall(noun, challenge, case, knot)
1
poser(noun, challenge, case, knot)
1
puzzle(noun, challenge, case, knot)
1
puzzlement(noun, challenge, case, knot)
1
quagmire(noun, challenge, case, knot)
1
quandary(noun, challenge, case, knot)
1
riddle(noun, challenge, case, knot)
1
snag(noun, challenge, case, knot)
1
stumper(noun, challenge, case, knot)
1
toughie(noun, challenge, case, knot)
1
toughy(noun, challenge, case, knot)
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APASmart Define. (2011). quantum physics thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/quantum_physics/thesaurus/related
ChicagoSmart Define. 2011. "quantum physics thesaurus" https://smartdefine.org/quantum_physics/thesaurus/related (accessed September 21, 2026).
HarvardSmart Define 2011, quantum physics thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/quantum_physics/thesaurus/related>.
MLASmart Define. "quantum physics thesaurus" 23 May 2011. Web. 21 September 2026. <https://smartdefine.org/quantum_physics/thesaurus/related>