Clue: So long I can't conceive of it, let alone write a good clue for it!
We have 1 possible answer for the clue So long I can't conceive of it, let alone write a good clue for it! which appears 1 time in our database.
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Related Clues:
- Periods of two or more of 40-Across
- Immensely long stretches
- Billion-year time divisions
- Gorges are carved over them
- Many, many, many, many, many moons
- Practically an eternity
- Considerable stretches
- Interminable periods
- Canyons form over them
- Extensive periods
- The Hadean, the Archean and the Proterozoic, e.g
- **Ages and ages (2 and 3)
- Earth's longest time divisions, geologically
- Astronomical time periods
- Extremely long times