moronize

(UK: moronise)

1. Transitive: to destroy another person's intelligence by consistently confronting that person with moronic behaviour.

2. Intransitive: to feel one's IQ decreasing when confronted with consistently moronic behaviour.

1. The incompetent employees were moronizing the information officer with a stream of inane requests.

2. As a result the information officer moronized to kindergarten level.