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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Hear me out: The Deep Submergence Vessel NR-1 is a nuclear submarine that, get this, has bottoming wheels that extend so that the sub can more easily travel along the sea floor.
Source: https://jalopnik.com/largest-land-vehicles-ever-built-1850329514