Random/ˈrændəm/ Definition 1 of 4Pro Tip 1/3Lack of Control Random events can't be predicted or influenced by anyone. The weather is so random lately. Pro Tip 2/3Unexpected Occurrence When something random happens, it's surprising and not anticipated. A random thunderstorm ruined our picnic. Pro Tip 3/3No Discrimination Random selection means everyone has an equal chance. The draw for the prize was random.