1. Hadean
adjective. of or relating to or characteristic of Hades or Tartarus.
Etymology
- ᾍδης (Ancient Greek (to 1453))
Rhymes with Hadean Eon
- freon
- theone
- neon
- leon
- gian
- geon
- dionne
- dione
- deon
- deion
2. Hadean
noun. the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life.
Antonyms
Etymology
- ᾍδης (Ancient Greek (to 1453))
3. eon
noun. ['ˈiːɑːn'] an immeasurably long period of time.
Antonyms
Etymology
- αἰών (Ancient Greek (to 1453))
4. eon
noun. ['ˈiːɑːn'] (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe.
Synonyms
Etymology
- αἰών (Ancient Greek (to 1453))
5. eon
noun. ['ˈiːɑːn'] the longest division of geological time.
Synonyms
Etymology
- αἰών (Ancient Greek (to 1453))
