While talking about Dumbest Girl in anime we can’t miss Orihime Inoue from Bleach.
Orihime Inoue comes across as naive, Crying Out To Ichigo, and clueless, which contrasts with her excellent educational performance. She works hard because if her grades fall, she will lose financial support from her family. With her mouth open, she tends to lose track of what she’s thinking or fantasizing about, she is careless and doesn’t think about her future. Orihime Suffers From Baseless Insecurities and Damsel In Distress. If that isn’t the ideal bimbo starter kit, I do not know what is!
If someone comes to me saying, how can she be a bimbo character if she gets good grades, well next time when Orihime gets kidnapped for the 1757th time, due to her own dumbness mind you, perhaps her grades will help her.