in·fight·ing 
(ĭnfī′tĭng)
(ĭnfī′tĭng)n.
1. Contentious rivalry or disagreement among members of a group or organization: infighting on the President's staff.
2. Fighting or boxing at close range.
infight′er n.
- unalterably
- unambiguous
- unambiguously
- un-American
- Unami
- Unamuno
- unanalyzable
- unanalyzably
- unaneled
- unanimity
- unanimous
- unanimously
- unanimousness
- unannounced
- unanswerability
- unanswerable
- unanswerableness
- unanswerably
- unanticipated
- unanticipatedly
- unapologetic
- unapologetically
- unappealable
- unappealably
- unappealing