unfuckupable adjective 1noun 1forms 1 adjective1 •(slang, vulgar) That cannot be fucked up; very simple to achieve.All I know is that Molly and Rooster pretty much fucked up what I thought was an unfuckupable plan. — 2014 noun1 •Someone or something that can't be fucked up.That's women. Fucking up the unfuckupable since the Garden of Eden. — 2008 formsunfuckupables