Synonym word of hard nut to crack:

Gordian knot, Pandora's box, Pandora's box, complex problem, complexity, complication, difficult situation, difficulty, dog's breakfast, entanglement, hard nut to crack, headache, hornet's nest, hot water, hot water, mare's nest, mess, predicament, problem, quagm


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Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular