Atlantean

from The Century Dictionary.

• Pertaining to Atlas; resembling Atlas.
• Pertaining to the island Atlantis of Plato and Strabo, fabled to exist in the ocean of the far West, or to Bacon's ideal commonwealth of that name.
• Sometimes written Atlantian.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to the isle Atlantis, which the ancients allege was sunk, and overwhelmed by the ocean.
• adjective Pertaining to, or resembling, Atlas; strong.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An inhabitant of the mythical island of Atlantis.
• noun The language supposedly spoken by the inhabitants of Atlantis.
• noun A language invented for the 2001 animated film Atlantis: The Lost Empire.
• noun An atlantean pillar or statue (one in the form of an architectural atlas)
• adjective Of or like the Greek titan Atlas, who carries the heavens on his shoulders, as in Atlantean strength
• adjective figuratively Of the celestial spheres carried by Atlas
• adjective Of an architectural atlas or atlantid, or reminiscent of such: atlantean figures
• adjective Of the mythical island of Atlantis, its people, or its civilization.
• adjective figuratively flooded or submerged, especially in case of a natural disaster, reminiscent of the way Atlantis sank into the ocean
• adjective of Saturn's moon Atlas