lackwit adjective 1noun 1forms 3 adjective1 •Foolish; idiotic or simple-minded.Your fault for bein' so lackwit, ours for givin' you leave. — 2018 noun1 •A witless person; a fool.Fear flashed through Tom's eyes as the lackwit looked to the housekeeper. — 1996 formslackwits · more lackwit · most lackwit
