The clue "Contaminant-free" last appeared in the Wall Street Journal crossword on January 12, 2019. The correct answer for this puzzle is "PURE", a 4-letter word.
Solution PURE is 4 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is PURE with 4 letters, and the shortest is PURE with 4 letters.
No, "CONTAMINANT-FREE" hasn´t seen a spike right now. Solvers are most interested in: mess, Dam, Faster, Passion and Dormant.
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The solution is 4 letters long.