noir UK /ˈnwɑː/US /ˈnwɑɹ/noun 2adjective 1forms 4 noun2 •Film noir. •A production in the style of film noir.Several noirs, including “Raw Deal,” have been set here. — 2007 adjective1 •Of or pertaining to film noir, or the atmosphere associated with that genreAs a neo-Sherlock Holmes, however, Mulder is also a very noir version of the classic detective (just as Scully is a very noir Watson). — 2008 formsnoirs · more noir · most noir · noirest