Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
The Raht Racer was an electric-assisted tricycle that riders would pedal just like a regular bike, but used an electric motor to get up to highway speeds.
Source: https://www.slashgear.com/1210754/most-dangerous-concept-vehicles-of-all-time/