maxiPronunciation: /ˈmaksi/Translate maxi | into Italian Definition of maxi noun (plural maxis) 1a skirt , coat, or dress reaching to the ankle: [as modifier]:the maxi skirt lengthens the silhouette 2 (also maxi yacht) a racing yacht of between 15 and 20 metres in length. Origin: 1960s: abbreviation of maximum, on the pattern of minimaxi in other Oxford dictionaries Definition of maxi in the US English dictionary