idiotical
/ˌaɪdɪˈɒtɪkəl/ (eye-di-OT-ik-ul)
Definitions
1. adjective
excessively or annoyingly foolish or silly
“His idiotical jokes made everyone groan.”
2. noun
a person or thing that is excessively or annoyingly foolish or silly
“He is an idiotical character in the movie.”