in·for·mal·i·ty 
(ĭn′fôr-mălĭ-tē)
(ĭn′fôr-mălĭ-tē)n. pl. in·for·mal·i·ties
1. The state or quality of being informal.
2. An informal act.
- organization
- organizational
- organizationally
- organize
- organized
- organized crime
- organizer
- organo-
- organochlorine
- organ of Corti
- organogenesis
- organogenetic
- organogenetically
- organographic
- organographically
- organography
- organoleptic
- organoleptically
- organologic
- organological
- organology
- organomercurial
- organometallic
- organon
- organophosphate