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Dictionary Suite
enigma something puzzling, contradictory, or mysterious; something for which a solution cannot be found. [1/2 definitions]
enigmatic of, concerning, or like an enigma; puzzling; mysterious.
figure out to find an answer to a problem or puzzling question by using the power of the mind.
labyrinthine complex and intricate like a labyrinth; puzzling. [1/2 definitions]
mysterious unknown and unexplainable; elusive; puzzling. [1/2 definitions]
mystery a piece of fiction involving complex plots and puzzling crimes. [1/4 definitions]
oddity a peculiar or puzzling thing, person, or event. [1/2 definitions]
puzzle out to work out a solution to (something that is puzzling).
riddle1 a puzzling, tricky, and often amusing question, usu. with an ingenious answer, posed as a diversion or as a test of one's wits. [2/4 definitions]
stickler a problem that is puzzling or difficult to solve. [1/2 definitions]