gloom verb ˈglüm \ gloomed; glooming; glooms Definition of gloom
intransitive verb 1 : to look, feel, or act sullen or despondent 2 : to be or become overcast 3 : to loom up dimly transitive verb : to make dark, murky, or somber : make gloomy gloom noun Definition of gloom 1a : partial or total darkness b : a dark or shadowy place 2a : lowness of spirits : dejection b : an atmosphere of despondency a gloom fell over the household