1. imbecilic - Adjective
2. imbecilic - Adjective Satellite
having a mental age of three to seven years
Source: WordNetThere are the twins Tweedledum and Tweedledee who bicker over insignificant issues; the Red Queen who constantly orders the beheading of anyone who displeases her; and the imbecilic White Queen. Source: Internet
Nobody is out to get Jameis Winston, despite those imbecilic "Jameis Against The World" T-shirts that have made the rounds. Source: Internet