blonde UK /blɒnd/US /blɑnd/adjective 1noun 1forms 5 adjective1 •(offensive) Stupid, ignorant, naive.Emma's already huge green eyes widen and she gives me this look like, “Oh my God, sometimes you are just so blonde!” — 2005 noun1 •(film, television, theater) A kind of 2,000-watt lamp. formsblondes · blonder · more blonde · blondest · most blonde