There are 2 solutions. The longest is CHTHONIAN with 9 letters, and the shortest is INFERNAL with 8 letters.
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Solutions are between 8 and 9 letters long.
Clue | Answers | |
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The Hadean was the earth's first one | ||
the eon following the Hadean time and preceding the Phanerozoic eon | ||
The Hadean was the first one, ending about 4 billion years ago | ||