| Answer | Crossword Clue |
|---|---|
| EONS | Unimaginably long stretches |
| EONS | Unimaginably long time |
| EON | Unimaginably long time |
| AEON | Unimaginably long time (Var.) |
| AEON | Unimaginably long time (var.) |
| AGES | Long stretches |
| EONS | Long stretches |
| ERAS | Long stretches |
| EPOCHS | Long stretches |
| DECADES | Long stretches |
| LENGTHS | Long stretches. |
| AEONS | Long stretches |
| EONS | Immensely long stretches |
| EONS | Extremely long stretches |
| AEONS | Incredibly long stretches |
| EONS | Long geologic stretches |
| EONS | Very long stretches |
| EONS | Long, long stretches |
| AEONS | Incredibly long stretches (Var.) |
| ANOS | Long stretches in Spain |
| EONS | Very long stretches of time |
