infightingPronunciation: /ˈɪnfʌɪtɪŋ/Translate infighting | into French | into German | into Italian | into Spanish Definition of infighting noun [mass noun] hidden conflict or competitiveness within an organization: infighting between departments grew worse the split was designed to end political infighting boxing closer to an opponent than at arm’s length. Derivatives infighter noun infighting in other Oxford dictionaries Definition of infighting in the US English dictionary